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  1. Title: King County, Washington : open water (polygons)

    Contributors:

    Summary: King County, Washington lakes, rivers, and streams polygons. Covers also the Puget Sound and portions of Snohomish and Pierce Counties.

  2. Title: King County, Washington : open water (lines)

    Contributors:

    Summary: King County, Washington lakes, rivers, and streams boundary lines. Covers also the Puget Sound and portions of Snohomish and Pierce Counties.

  3. Title: King County, Washington : streams

    Contributors:

    Summary: King County, Washington streams. Covers also portions of Snohomish and Pierce Counties.

  4. Title: King County, Washington : wellhead protection areas (six month time of travel)

    Contributors:

    Summary: King County, Washington wellhead protection areas where contamination can flow into the well over a 6 month travel time.

  5. Title: King County, Washington : wellhead protection areas (one year time of travel)

    Contributors:

    Summary: King County, Washington wellhead protection areas where contamination can flow into the well over a 1 year travel time.

  6. Title: King County, Washington : wellhead protection areas (five year time of travel)

    Contributors:

    Summary: King County, Washington wellhead protection areas where contamination can flow into the well over a 5 year travel time.

  7. Title: King County, Washington : water supply wells, group A (15 or more connections)

    Contributors:

    Summary: Public Water System wells (group A) with 15 or more connections, as recorded by the Washington Department of Health. See also the related datasets: water supply wells, group B, and water supply wells, all datalayers.

  8. Title: King County, Washington : wellhead protection area (ten year time of travel)

    Contributors:

    Summary: King County, Washington wellhead protection areas where contamination can flow into the well over a 10 year travel time.

  9. Title: King County, Washington : wellhead protection areas

    Contributors:

    Summary: King County, Washington wellhead protection areas.

  10. Title: King County, Washington : water supply wells, group B (2 to 14 connections)

    Contributors:

    Summary: Public Water System wells (group B) with 2 to 14 connections, as recorded by the Washington Department of Health. See also the related datasets: water supply wells, group A, and water supply wells, all datalayers.

  11. Title: King County, Washington : 100 foot contour lines

    Contributors:

    Summary: Index contours at 100 foot intervals derived from USGS 10 meter Digital Elevation Model (DEM)

  12. Title: Map of state of Washington

    Contributors:

    Summary: Relief shown by hachures. 46 x 64 centimeters

  13. Title: Mining Districts, Victoria, Australia, ca. 1868 (Raster Image)

    Contributors:

    Summary: This layer is a georeferenced raster image of the historic paper map entitled: Victoria mining districts, mining divisions & the gold fields, engraved by William Slight under the direction of R. Brough Smyth ; colored by Arthur Everett, August 1st, 1868. It was published by Dept of Mines ca. 1868. Scale [ca. 1:1,000,000].The image inside the map neatline is georeferenced to the surface of the earth and fit to the coordinate system. All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, index maps, legends, or other information associated with the principal map. This map shows features such as drainage, cities and other human settlements, administrative boundaries, railroads, gold reefs, mining districts, telegraph lines, shoreline features, and more. Relief shown by hachures. Includes notes.This layer is part of a selection of digitally scanned and georeferenced historic maps from the Harvard Map Collection. These maps typically portray both natural and manmade features. The selection represents a range of originators, ground condition dates, scales, and map purposes.

  14. Title: Relative Landslide Potential, Elk River Watershed, California, 1940-2000

    Contributors:

    Summary: This raster dataset represeting relative landslide potential within the Elk River watershed in Humboldt County, California. This layer contains five categories used to indicate potential for landsliding 91 = very low, 5 = very high). This dataset is the product of the Department of Conservation, California Geological Survey’s (CGS) investigation of landslides in the Elk River watershed. The 52 square mile study area is located in Humboldt County in northwestern California. The investigation was based on interpretation of 1940, 1941, 1948, 1954, 1962, 1965, 1984, 1988, 1996 and 2000 aerial photos, findings from CGS’s landslide mapping conducted in the early 1980s (Kilbourne, R.T. 1982-84, Manson, M. W. 1984), as well as other sources. Mapping was conducted at 1:24,000 scale. The resulting maps are titled “Geologic and Geomorphic Features Related to Landsliding, Elk River Watershed” (Plate 1) and “Relative Landslide Potential with Geologic and Geomorphic Features, Elk River Watershed” map (Plate 2). This study was conducted at a regional scale of mapping using ten sets of aerial photos combined with a compilation of earlier published and unpublished work. Other photo sets may reveal additional landslides. The regional nature of the study makes the data and maps, including the relative landslide potential zones, inappropriate as a substitute for site-specific analysis. CGS evaluated the geology, relative slope stability and geomorphic characteristics within the watershed, and compiled the digital geospatial data described in this document. This mapping and compilation is geared toward providing baseline geologic and geomorphic data to aid in responsible land management, as well as the development of watershed restoration projects, watershed management strategies, and watershed plans. Initial checking of attributes was conducted by the geologists who mapped the features. Limited field assessment of attributes was completed. The 'confidence' attribute indicates the geologist's level of certainty in a given feature (typically as viewed through a stereoscope). Peer reviewers and GIS staff conducted additional quality control. Because the attribute fields are designed to address various types of mapping products, and because some data is compiled from other sources, not all attribute fields are populated. Marshall, G., Mendes, E., California Geological Survey and California Dept. of Conservation. (2005). Relative Landslide Potential, Elk River Watershed, California, 1940-2000 California Geological Survey. Available at: http://purl.stanford.edu/tv351wx8553. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.

  15. Title: Planimetric Features - Curbs, Islands within Right of Way

    Contributors:

    Summary: Curbs and islands within the city rights-of-way. The data was develped by merging the 73 individual feature files of the Basemap into one citywide map. While the individual features files have not been updated since their development, the citywide file was updated to reflect changes along the Embarcardero corridor and along King St. Please note that the sidewalk widths (curbs) were derived from project working drawings and may not be as-builts conditions. There are plans by DPW to update the layers found in the features drawings.

  16. Title: Orthophoto Grid

    Contributors:

    Summary: This data set is a grid of San Francisco and Treasure Island that references the appropriate TileKey Image and Quadrant for the Orthophotos.

  17. Title: Supervisor Districts

    Contributors:

    Summary: Supervisorial districts for the City of San Francisco. This data include Treasure Island as part of Supervisor District 6. The data was created based on legal description as found in the City Charter.

  18. Title: United States County Boundary Files, 1950

    Contributors:

    Summary: The Historical United States County Boundary Files 1950 contains ArcView shapefile format U.S. county boundary files for 1950. Files include county and state names and FIPS identification numbers.

  19. Title: United States County Boundary Files, 1999

    Contributors:

    Summary: The Historical United States County Boundary Files 1999 contains ArcView shapefile format U.S. county boundary files for 1999. Files include county and state names and FIPS identification numbers.

  20. Title: United States County Boundary Files, 1870

    Contributors:

    Summary: The Historical United States County Boundary Files 1870 contains ArcView shapefile format U.S. county boundary files for 1870. Files include county and state names and FIPS identification numbers.

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