125 results returned
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Title: Vineyards: Russian River Basin, California, 1990-1997
Contributors:- Polygon data
- 2002
- Not owned by MIT (Owned by Stanford)
Summary: This polygon shapefile describes the 1990/1997 vineyard and appellation boundaries of Sonoma County. The data was developed from Sonoma County Planning Department 1990 aerial photos, American Digital Cartography, Inc. digital base maps, Sonoma County Assessors office 1:6,000-scale enlargements of rectified 1990 aerial photographs (printed on blueprint-quality paper), and digital maps based on USGS 1:100,000-scale DLGs. This layer can be used for land use analysis and planning in the Russian River region of California. Circuit Rider Productions and National Oceanic and Atmospheric Administration (2002). Vineyards: Russian River Basin, California, 1990-1997. Circuit Rider Productions. Available at: http://purl.stanford.edu/wc096sj4499 This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
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Title: Anadromous Stream Restoration Projects (Points): Russian River, California, 1981-2002
Contributors:- Point data
- 2002
- Not owned by MIT (Owned by Stanford)
Summary: This point shapefile contains the locations of completed projects (for which final reports have been received) funded through the California Department of Fish and Game's Fisheries Restoration Grants Program (FRGP). The shapefile was created by heads-up digitizing. Locations were taken from representations of stream habitat restoration projects marked on maps included in the paper documentation of the projects. Approximately 12% of projects sites (455/3850) could not be placed at specific locations.Line locations were originally digitized using two different methods. Instream locations were digitized by referencing them directly to the place along the stream in which the work was done. Locations that were not along streams were heads-up digitized. These two different shapefiles were merged into a single line shapefile for the purposes of this data release. See Supplimental Information for more details. This point dataset describes the geographic areas where restoration projects were completed through the California Department of Fish and Game's Fisheries Restoration Grants Program (FRGP), and is intended to be a comprehensive repository for anadromous stream restoration projects throughout California. Circuit Rider Productions and National Oceanic and Atmospheric Administration (2002). Anadromous Stream Restoration Projects (Points): Russian River, California, 1981-2002. Circuit Rider Productions. Available at: http://purl.stanford.edu/jh185jy9609 Data is sought from any agencies and organizations that have funded or carried out restoration work in California. This shapefile must be used in conjunction with rr_restoration_pts1.shp (points) and rr_restoration_plys3.shp (polygons) in order to view the complete set of project locations for the Russian River basin portion of the CHRPD. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
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Title: Anadromous Stream Restoration Projects (Lines): Russian River, California, 1981-2002
Contributors:- Line data
- 2002
- Not owned by MIT (Owned by Stanford)
Summary: This line shapefile was created by digitizing locations of stream habitat restoration projects marked on maps included in the paper documentation of the projects. Approximately 12% of projects sites (455/3850) could not be placed at specific locations. Data includes habitat improvement projects, research projects (surveys and studies of streams, roads, watersheds), education projects, and hatchery projects (including trapping, spawning, rearing and releasing salmonids) and contains all completed projects (for which final reports have been received) funded through the California Department of Fish and Game's Fisheries Restoration Grants Program (FRGP). This shapefile is intended to be a comprehensive repository for anadromous stream restoration projects throughout California. Line features describe the geographic areas where restoration projects were completed through the California Department of Fish and Game's Fisheries Restoration Grants Program (FRGP). Circuit Rider Productions and National Oceanic and Atmospheric Administration (2002). Anadromous Stream Restoration Projects (Lines): Russian River, California, 1981-2002. Circuit Rider Productions. Available at: http://purl.stanford.edu/dn629yz2431 This shapefile must be used in conjunction with rr_restoration_pts1.shp (points) and rr_restoration_plys3.shp (polygons) in order to view the complete set of project locations for the Russian River basin portion of the CHRPD. Line locations were originally digitized using two different methods. Instream locations were digitized by referencing them directly to the place along the stream in which the work was done. This was accomplished using NCNCR Hydrography Tools and routed 1:100K California hydrography (for questions about the tools and hydrography, contact Eric Haney, Information Services Branch Manager, Northern California North Coast Region Dept. of Fish and Game, (530) 225-2052, ehaney@dfg.ca.gov). Locations that were not along streams were heads-up digitized. These two different shapefiles were merged into a single line shapefile for the purposes of this data release. See CHRPD documentation for a detailed description of data categories in the database and the data entry process. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
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Title: Waterbody Reach: Russian River Basin, California, 1999-2002
Contributors:- Polygon data
- 2002
- Not owned by MIT (Owned by Stanford)
Summary: The polygon features were selected based on their spatial location within the extent of the Russian River basin and contains reach codes for networked features and isolated lakes, flow direction, names, stream level, and centerline representations for areal water bodies. Reaches are also defined to represent waterbodies. This dataset describes the lakes of the Russian River basin and is intended for hydrography analysis and planning. Circuit Rider Productions and National Oceanic and Atmospheric Administration (2002). Waterbody Reach: Russian River Basin, California, 1999-2002. Circuit Rider Productions. Available at: http://purl.stanford.edu/mg798hj5833 The accuracy of the attributes of the Digital Line Graph data is estimated to be 98.5 percent. One or more of the following methods were used to test attribute accuracy: - manual comparison of the source with hardcopy plots. - symbolized display of the digital line graph on an interactive computer graphic system. - Selected attributes that could not be visually verified on plots or on screen were interactively queried and verified on screen. In addition, software validated feature types and characteristics against a master set of types and characteristics, checked that combinations of types and characteristics were valid, and that types and characteristics were valid for the delineation of the feature. Feature types, characteristics, and other attributes conform to the Standards for National Hydrography Dataset (USGS, 1999) as of the date they were loaded into the database. All names on reaches were validated against a March 1999 extract from the Geographic Names Information System. The entry and identifier for the names match those in the Geographic Names Information System. Features found on the ground may have been eliminated or generalized on the source graphic because of scale and legibility constraints. In general, streams longer than one mile (approximately 1.6 kilometers) were collected. Most streams that flow from a lake were collected regardless of their length. Only definite channels were collected so not all swamp/marsh features have stream/rivers delineated through them. Lake/ponds having an area greater than 6 acres (approximately 2.4 hectares) were collected. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
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Title: Flood Data: Russian River Basin, California, (Q3) 1996
Contributors:- Polygon data
- 2002
- Not owned by MIT (Owned by Stanford)
Summary: This polygon shapefile represents the portion of the Federal Emergenecy Management Q3 Flood Data Management maps within the Russian River basin region of California. Flood Data are derived from the 1:24000 Flood Insurance Rate Maps (FIRMS) published by FEMA. This layer can be used for watershed analysis and planning in the Russian River region of California. The FIRM is the basis for floodplain management, mitigation, and insurance activities for the National Flood Insurance Program (NFIP). Insurance applications include enforcement of the mandatory purchase requirement of the Flood Disaster Protection Act Specifications for the digitizing of FIRMs to create the Q3 Flood Data are consistent with those requirements for mapping at a scale of 1:24000. Horizontal control of Q3 Flood Data was established using USGS quadrangle maps at 1:24000 or other standard scales. Users should assess the horizontal positional sources and the requirements of their application. With increased frequency, large-scale spatial data sets are becoming widely available for computer-based geographic information systems. Q3 Flood Data may be used in combination with other digital spatial data, however, users should be aware that scalar enlargements do not enhance the relative accuracy of the Q3 Flood Data (i.e. 1:24000). Circuit Rider Productions and National Oceanic and Atmospheric Administration (2002). Flood Data: Russian River Basin, California, (Q3) 1996 . Circuit Rider Productions. Available at: http://purl.stanford.edu/yh376xf2882 This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
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Title: Land Cover of Alluvial Areas: Russian River Main Stem, Alexander Valley Reach, Sonoma County, California, 1993
Contributors:- Polygon data
- 2002
- Not owned by MIT (Owned by Stanford)
Summary: This polygon shapefile describes the landuse and landcover of the Alexander Valley reach of the Russian River in 1993. The Alexander Valley Reach extent is defined by the Jimtown Bridge and Cloverdale, Sonoma Co. This dataset is one of six datasets that together, form the GIS data for the Russian River Resource Enhancement Plan and Public Access Plan (Enhancement Plan).Each of the .shp files listed above is intended to be linked to a .dbf using the 'ACADTEXT' attribute column. The .dbf files were created as a part of the original Enhancement Plan, not the Russian River Watershed GIS.Link this file with hab2_90.dbf for landuse/landcover information.Link this file with rip2_90.dbf for for riparian habitat successional status information.This layer can be used for land use analysis and planning in the Russian River region of California.
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Title: Evolutionary Significant Unit Boundaries, Chinook Salmon: Russian River, California, 2002
Contributors:- Line data
- 2002
- Not owned by MIT (Owned by Stanford)
Summary: This line shapefile of evolutionary significant unit boundaries was compiled from various sources based on written descriptions in National Marine Fisheries Service (NMFS) status reviews (available upon request) and mapping provided by NMFS. An Evolutionary significant unit, or ESU, of Pacific salmon is considered to be a "distinct population segment" and thus a "species" under the Endangered Species Act. Initial boundaries were derived from USGS 1:250,000 scale hydrologic unit boundaries. Drainage basin delineation from blockages was based on 1:100,000 stream hydrography and/or and available digital topography(1:250,000). Species do not necessarily inhabit all drainages or river reaches depicted. This dataset includes evolutionary significant unit (ESU) polygons depicting major basins within the current known range of each ESU, and were modified based on migration blockages and known fish distribution. Circuit Rider Productions and National Oceanic and Atmospheric Administration (2002). Evolutionary Significant Unit Boundaries, Chinook Salmon: Russian River, California, 2002. Circuit Rider Productions. Available at: http://purl.stanford.edu/rs384cg4043 This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
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Title: Open Space Conservation Easements and District Fee Lands: Sonoma County, California, 2000
Contributors:- Polygon data
- 2002
- Not owned by MIT (Owned by Stanford)
Summary: This polygon layer represents properties with land preservation through either a district fee or conservation easement. This shapefile is one of seven GIS layers developed by the Sonoma County Agricultural Preservation and Open Space District for use in developing the Acquisition Plan 2000: A Blueprint for Agricultural and Open Space Preservation. "Acquisition Plan 2000 provides a comprehensive strategy for targeting open space protection efforts in the highest priority areas. State law requires that each County and city prepare an Open Space Element as part of its General Plan that addresses how preservation of open space lands will be implemented. The 1989 Sonoma County General Plan implements legal requirements for preservation of open space land through various plan elements, including Open Space, Resource Conservation, Land Use, Public Safety, and Agricultural Resources." Circuit Rider Productions and National Oceanic and Atmospheric Administration (2002). Open Space Conservation Easements and District Fee Lands: Sonoma County, California, 2000. Circuit Rider Productions. Available at: http://purl.stanford.edu/fw378dw8069 This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
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Title: Historical and Current Distributions of Chinook Salmon, Coho Salmon, Steelehead Trout and Coastal Cutthroat Trout in the Russian River Watershed, California, 2002
Contributors:- Polygon data
- 2002
- Not owned by MIT (Owned by Stanford)
Summary: This polygon shapefile describes distributions of Chinook and Coho salmon and Steelehead and Coastal Cutthroat trout in the Russian River watershed up until 2002. The mapping unit used to describe fish distributions is the seventh field polygons from the CALWATER hydrologic sub-unit coverage. Please note that the disctinction between historic and current stopped in 1999. This shapefile is intended to be used for salmonid recovery planning, watershed planning and analysis at the 1:24,000 scale. Circuit Rider Productions and National Oceanic and Atmospheric Administration (2002). Historical and Current Distributions of Chinook Salmon, Coho Salmon, Steelehead Trout and Coastal Cutthroat Trout in the Russian River Watershed, California, 2002. Circuit Rider Productions. Available at: http://purl.stanford.edu/jy277qs2883 This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
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Title: State Water Resources Control Board Region 1 Project Sites: Russian River Basin, California
Contributors:- Point data
- 2002
- Not owned by MIT (Owned by Stanford)
Summary: This point shapefile contains locations of sites of projects focused on the enhancement of water resources within the Russian River Watershed region of California. These data were derived from a State Water Resources Control Board Region 1 Project Sites laye that was contributed to the RRGIS by the North Coast Regional Water Quality Control Board. The State Water Resources Control Board (State Board) and the nine (9) Regional Water Quality Control Boards (Regional Boards) work together to protect California's water resources. The purpose of this layer is to describe the location of state water resources control board project locations in the Russian River region of California. Circuit Rider Productions and National Oceanic and Atmospheric Administration (2002). State Water Resources Control Board Region 1 Project Sites: Russian River Basin, California. Circuit Rider Productions. Available at: http://purl.stanford.edu/pd499fs7898 This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
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Title: Contour Lines: Sonoma County, California
Contributors:- Polygon data
- 2002
- Not owned by MIT (Owned by Stanford)
Summary: This polygon shapefile represents countour lines of Sonoma County in California. This is a reprojected version of a countour layer of Sonoma County originally created by the North Coast Regional Water Quality Control Board. This layer can be used for watershed analysis and planning in the Russian River region of California. Circuit Rider Productions and National Oceanic and Atmospheric Administration (2002). Contour Lines: Sonoma County, California. Circuit Rider Productions. Available at: http://purl.stanford.edu/hp598dd2922 This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
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Title: Juvenile Salmonid Abundance Monitoring: Gird Creek, Russian River, California, 1991-2001
Contributors:- Line data
- 2002
- Not owned by MIT (Owned by Stanford)
Summary: This line shapefile represents juvenile abundance monitoring that was conducted in Gird Creek (a tributary of the Russian River) to evaluate spawning success, fry or fingerling production, and juvenile survivorship as part of a larger study examining the potential effects of reclaimed water discharged to Santa Rosa Creek by the Santa Rosa Subregional Reclamation System. Provides temporal data on fish and other aquatic species abundance in multiple Russian River tributaries. Circuit Rider Productions and National Oceanic and Atmospheric Administration (2002). Juvenile Salmonid Abundance Monitoring: Gird Creek, Russian River, California, 1991-2001. Circuit Rider Productions. Available at: http://purl.stanford.edu/wn501hz0771 Juvenile abundance monitoring was conducted within "index zones". Each stream was divided into upper, middle and lower reaches, based on elevation, average gradient, and distance from the Russian River, and an index zone was select from surveys within each reach. Index zones were established during the first study year and surveyed for habitat condition. Each index zone was broken down into habitat unit types (pool, riffle, glide), in which a unit is defined as a continuous portion of the stream of variable length, within which only one habitat type is present or is dominant. Juvenile abundance monitoring was conducted in selected units rather than the entire index zone. However, mapping is at the scale of index zone, with data for individual units included. Fish were sampled in selected units within each index zone by repeated passes through the unit with a beach seine. All fish and other species (invertebrates, amphibians, reptiles, mammals) captured were identified to species, and the salmonids (steelhead or coho) were measured (fork length). Monitoring was conducted at the beginning (July) and end (October-November) of the summer dry period to enable estimation of percent retention within the sampling area over this critical time period, as well as inferences regarding spawning success and juvenile growth rate. Mapping was conducted at the scale of index zone rather than habitat unit. Data for habitat zone is presented here without spatial data as supplemental information. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
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Title: Roads (1:100,000): Russian River Watershed, California, 1993-2002
Contributors:- Line data
- 2002
- Not owned by MIT (Owned by Stanford)
Summary: This line shapefile represents the roads within the Russian River Watershed boundaries of California. These data were extracted from a layer titles 'Major Roads of California' (1997). Line features selected from the original source data were based on their spatial location within the extent of the Russian River basin. The intended purpose of this dataset is to provide users with a line feature type data layer at 1:100,000 scale that describes and illustrates the roads contained within the extent of the Russian River basin. Circuit Rider Productions and National Oceanic and Atmospheric Administration (2002). Roads (1:100,000): Russian River Watershed, California, 1993-2002. Circuit Rider Productions. Available at: http://purl.stanford.edu/jq418gt8355 This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
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Title: Planned Parks: Sonoma County, California, 2000
Contributors:- Point data
- 2002
- Not owned by MIT (Owned by Stanford)
Summary: This polygon shapefile represents the general location of planned parks in Sonoma County, California. This shapefile is one of seven GIS layers developed by the Sonoma County Agricultural Preservation and Open Space District for use in developing the Acquisition Plan 2000: A Blueprint for Agricultural and Open Space Preservation. This shapefile provides a comprehensive strategy for targeting open space protection efforts in the highest priority areas. State law requires that each county and city prepare an Open Space Element as part of its General Plan that addresses how preservation of open space lands will be implemented. The 1989 Sonoma County General Plan implements legal requirements for preservation of open space land through various plan elements, including Open Space, Resource Conservation, Land Use, Public Safety, and Agricultural Resources. Circuit Rider Productions and National Oceanic and Atmospheric Administration (2002). Planned Parks: Sonoma County, California, 2000. Circuit Rider Productions. Available at: http://purl.stanford.edu/pk263hs7795 This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
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Title: Apellations: Russian River Basin, California
Contributors:- Polygon data
- 2002
- Not owned by MIT (Owned by Stanford)
Summary: This polygon shapefile represents appellations within the Russian River watershed region of California. The term appellation is defined as a geographical name for a wine grower to identy the origin of the grapes.The appellations layer is based on legal descriptions from The Bureau of Alcohol, Tobacco and Firearms (BATF). This layer can be used for land use analysis and planning in the Russian River region of California. Circuit Rider Productions and National Oceanic and Atmospheric Administration (2002). Apellations: Russian River Basin, California. Circuit Rider Productions. Available at: http://purl.stanford.edu/qt383jg7794 This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
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Title: Russian River Watershed Boundary, 1999-2002
Contributors:- Polygon data
- 2002
- Not owned by MIT (Owned by Stanford)
Summary: This polygon shapefile represents the boundary of the Russian River Watershed in California. These data are derived from the California Watershed Map (v.2.2), a set of standardized watershed boundaries meeting standardized delineation criteria. The purpose of this file is to provide GIS users with a layer of the Russian River Watershed which is not divided into smaller, sub-hydrologic units. This layer provides users with a layer that can be used to clip datasets that describe geographic regions larger than the area of the watershed. Circuit Rider Productions and National Oceanic and Atmospheric Administration (2002). Russian River Watershed Boundary, 1999-2002. Circuit Rider Productions. Available at: http://purl.stanford.edu/ps570mj9038 This dataset was developed through querying the Calwater 2.2 dataset for hydrolic unts that compose the Russian River watershed. The resulting query describes the Russian River watershed and it’s sub-hydrologic units. This file was then dissolved based on a common attribute field. The dissolve geo-processing task was accomplished using ArcView 3.1’s Geoprocessing Wizard applications. The resulting theme illustrates the spatial extent of the Russian River watershed. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
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Title: Line Features of the Russian River Watershed, California, 1999
Contributors:- Line data
- 2002
- Not owned by MIT (Owned by Stanford)
Summary: This line shapefile features stream cross section data from the Russian River mainstem and describes 1999 contours, project limits, tree dripline, DEM breaklines, thalweg and unpaved roads for the Middle Reach. The original source data from which this GIS file was created was contributed to the RRGIS by the Sonoma County Water Agency (SCWA). The Sonoma County Water Agency gathers stream cross section data for the Russian River mainstem on a yearly basis. Comprehensive stream cross sectional information was contributed to the RRGIS for the years 1993 through 2001. Additional cross section data describing conditions as far back as 1990 was at times included in certain files. The contriubted data were in a variety of file formats including .txt , .xls and .dwg. During an advisory meeting with fisheries biologists, it was determined that converting the SCWA cross section data into a GIS formatted file was a high priority for local salmonid recovery planning efforts. This layer can be used for watershed analysis and planning in the Russian River region of California. Circuit Rider Productions and National Oceanic and Atmospheric Administration (2002). Line Features of the Russian River Watershed, California, 1999. Circuit Rider Productions. Available at: http://purl.stanford.edu/nw500jv2453 This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
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Title: Sonoma County Agricultural Preservation and Open Space District Active Project Areas, 2000
Contributors:- Polygon data
- 2002
- Not owned by MIT (Owned by Stanford)
Summary: This polygon shapefile represents the Sonoma County Agricultural Preservation and Open Space District's active project areas. This layer is one of seven GIS layers developed by the Sonoma County Agricultural Preservation and Open Space District for use in developing the Acquisition Plan 2000: A Blueprint for Agricultural and Open Space Preservation. This shapefile is part of a comprehensive strategy for targeting open space protection efforts in the highest priority areas. State law requires that each county and city prepare an Open Space Element as part of its General Plan that addresses how preservation of open space lands will be implemented. The 1989 Sonoma County General Plan implements legal requirements for preservation of open space land through various plan elements, including Open Space, Resource Conservation, Land Use, Public Safety, and Agricultural Resources. Circuit Rider Productions and National Oceanic and Atmospheric Administration (2002). Sonoma County Agricultural Preservation and Open Space District Active Project Areas, 2000. Circuit Rider Productions. Available at: http://purl.stanford.edu/yq981nw6410 This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
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Title: Juvenile Abundance Monitoring: Santa Rosa Creek, Russian River, California, 1994-2001
Contributors:- Line data
- 2002
- Not owned by MIT (Owned by Stanford)
Summary: This line shapefile represents the juvenile salmonid abundance monitoring that was conducted in Santa Rosa Creek (a tributary of the Russian River) to evaluate spawning success, fry or fingerling production, and juvenile survivorship as part of a larger study examining the potential effects of reclaimed water discharged to Santa Rosa Creek by the Santa Rosa Subregional Reclamation System. Provides temporal data on fish and other aquatic species abundance in multiple Russian River tributaries. Circuit Rider Productions and National Oceanic and Atmospheric Administration (2002). Juvenile Abundance Monitoring: Santa Rosa Creek, Russian River, California, 1994-2001. Circuit Rider Productions. Available at: http://purl.stanford.edu/zd583bw5976 Juvenile abundance monitoring was conducted within "index zones". Each stream was divided into upper, middle and lower reaches, based on elevation, average gradient, and distance from the Russian River, and an index zone was select from surveys within each reach. Index zones were established during the first study year and surveyed for habitat condition. Each index zone was broken down into habitat unit types (pool, riffle, glide), in which a unit is defined as a continuous portion of the stream of variable length, within which only one habitat type is present or is dominant. Juvenile abundance monitoring was conducted in selected units rather than the entire index zone. However, mapping is at the scale of index zone, with data for individual units included. Fish were sampled in selected units within each index zone by repeated passes through the unit with a beach seine. All fish and other species (invertebrates, amphibians, reptiles, mammals) captured were identified to species, and the salmonids (steelhead or coho) were measured (fork length). Monitoring was conducted at the beginning (July) and end (October-November) of the summer dry period to enable estimation of percent retention within the sampling area over this critical time period, as well as inferences regarding spawning success and juvenile growth rate. Mapping was conducted at the scale of index zone rather than habitat unit. Data for habitat zone is presented here without spatial data as supplemental information. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
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Title: 2000 Census Blocks, Demographic Data: Russian River Basin, California
Contributors:- Polygon data
- 2002
- Not owned by MIT (Owned by Stanford)
Summary: This polygon shapefile contains the portion of the 2000 census blocks, summary file 1 (SF1) demographic data coverage that is within the watershed boundaries of the Russian River basin in California. Census TIGER are registered trademarks of the Bureau of the Census. The Redistricting Census 2000 TIGER/Line files are an extract of selected geographic and cartographic information from the Census TIGER data base. The geographic coverage for a single TIGER/Line file is a county or statistical equivalent entity, with the coverage area based on January 1, 2000 legal boundaries. A complete set of Redistricting Census 2000 TIGER/Line files includes all counties and statistically equivalent entities in the United States and Puerto Rico. The Redistricting Census 2000 TIGER/Line files will not include files for the Island Areas. The Census TIGER data base represents a seamless national file with no overlaps or gaps between parts. However, each county-based TIGER/Line file is designed to stand alone as an independent data set or the files can be combined to cover the whole Nation. The Redistricting Census 2000 TIGER/Line files consist of line segments representing physical features and governmental and statistical boundaries. The Redistricting Census 2000 TIGER/Line files do NOT contain the ZIP Code Tabulation Areas (ZCTAs) and the address ranges are of approximately the same vintage as those appearing in the 1999 TIGER/Line files. That is, the Census Bureau is producing the Redistricting Census 2000 TIGER/Line files in advance of the computer processing that will ensure that the address ranges in the TIGER/Line files agree with the final Master Address File (MAF) used for tabulating Census 2000. The files contain information distributed over a series of record types for the spatial objects of a county. There are 17 record types, including the basic data record, the shape coordinate points, and geographic codes that can be used with appropriate software to prepare maps. Other geographic information contained in the files includes attributes such as feature identifiers/census feature class codes (CFCC) used to differentiate feature types, address ranges and ZIP Codes, codes for legal and statistical entities, latitude/longitude coordinates of linear and point features, landmark point features, area landmarks, key geographic features, and area boundaries. The Redistricting Census 2000 TIGER/Line data dictionary contains a complete list of all the fields in the 17 record types. This layer can be used for watershed analysis and planning in the Russian River region of California. In order for others to use the information in the Census TIGER data base in a geographic information system (GIS) or for other geographic applications, the Census Bureau releases to the public extracts of the data base in the form of TIGER/Line files. Various versions of the TIGER/Line files have been released; previous versions include the 1990 Census TIGER/Line files, the 1992 TIGER/Line files, the 1994 TIGER/Line files, the 1995 TIGER/Line files, the 1997 TIGER/Line files, the 1998 TIGER/Line files, and the 1999 TIGER/Line files. The Redistricting Census 2000 TIGER/Line files were originally produced to support the Census 2000 Redistricting Data Program. Circuit Rider Productions and National Oceanic and Atmospheric Administration (2002). 2000 Census Blocks, Demographic Data: Russian River Basin, California. Circuit Rider Productions. Available at: http://purl.stanford.edu/yt423xd2317 This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.