2,953 results returned
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Title: Official state map, and preliminary geologic and economic map of North Dakota
Contributors:- Not specified
- 1902
Summary: Relief shown by hachures.; "Approved by Frank White, Governor of North Dakota, and R.J. Turner, Commissioner of Agriculture & Labor." 36 x 56 centimeters
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Title: Map of trunk highway system State of North Dakota
Contributors:- Not specified
- 1927
Summary: Includes mileage and city data for each state highway. 31 x 50 centimeters
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Title: Map of trunk highway system, state of North Dakota
Contributors:- Not specified
- 1925
Summary: Relief shown by hachures.; "Showing condition as of Jan. 1, 1925." 35 x 55 centimeters
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Title: Railroad Commissioners' map of North Dakota
Contributors:- Not specified
- 1914
Summary: Topography compiled from plats on file in the office of the State Engineer. The location of railroads obtained from maps filed in office of Railroad Commissioner, Bismarck.; Relief shown by hachures. 30 x 48 centimeters
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Title: South Dakota
Contributors:- Not specified
- 1922
Summary: Administrative information shown in green; roads and "status of construction" shown in red. "Hipple Printing Co., Pierre, S. D." 44 x 62 centimeters
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Title: Cropland Data Layer, New York, 2020
Contributors:- Raster data
- 2021
Summary: The USDA, NASS Cropland Data Layer (CDL) is a raster, geo-referenced, crop-specific land cover data layer. The 2020 CDL has a ground resolution of 30 meters. The CDL is produced using satellite imagery from the Landsat 8 OLI/TIRS sensor, the Disaster Monitoring Constellation (DMC) DEIMOS-1, the ISRO ResourceSat-2 LISS-3, and the ESA SENTINEL-2 sensors collected during the current growing season. Some CDL states used additional satellite imagery and ancillary inputs to supplement and improve the classification. These additional sources can include the United States Geological Survey (USGS) National Elevation Dataset (NED) and the imperviousness and canopy data layers from the USGS National Land Cover Database 2016 (NLCD 2016). Agricultural training and validation data are derived from the Farm Service Agency (FSA) Common Land Unit (CLU) Program. The most current version of the NLCD is used as non-agricultural training and validation data. Please refer to the 'Supplemental_Information' Section of this metadata file for a complete list of all imagery, ancillary data, and training/validation data used to generate this state's CDL. The strength and emphasis of the CDL is agricultural land cover. Please note that no farmer reported data are derivable from the Cropland Data Layer. The purpose of the Cropland Data Layer Program is to use satellite imagery to (1) provide planted acreage estimates to the Agricultural Statistics Board for the state's major commodities and (2) produce digital, crop-specific, categorized geo-referenced output products.
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Title: Spread of Africanized Honey Bees in the United States, 1990-2005
Contributors:- Polygon data
- 2006
Summary: This polygon shapefile portrays the spread, by year, of the Africanized honey bee (AHB) in the United States, Puerto Rico, and the U.S. Virgin Islands. The data indicate the year in which the AHB was first observed in a county. This is a revised version of the December 2004 map layer. This layer is part of the 1997-2014 edition of the National Atlas of the United States. These data are intended for geographic display and analysis at the national level, and for large regional areas. The data should be displayed and analyzed at scales appropriate for 1:2,000,000-scale data. No responsibility is assumed by the National Atlas of the United States in the use of these data. United States. Agricultural Research Service. (2006). Spread of Africanized Honey Bees in the United States, 1990-2005. National Atlas of the United States. Available at: http://purl.stanford.edu/fj542kq9240. Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made by the U.S. Geological Survey regarding the utility of the data on any other system, nor shall the act of distribution constitute any such warranty. No responsibility is assumed by the U.S. Geological Survey in the use of these data. 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: Soil Survey, Tompkins County NY, 1965
Contributors:- Polygon data
- 1965
Summary: Various county departments, local municipal agencies, and other not-for-profit organizations have identified the need for a digital soil coverage data set for Tompkins County, NY. The Tompkins County ITS GIS Division initiated and developed a digital soil coverage from the official analog soil map series produced and published by the United States Geology Survey (USGS) and Cornell University Agricultural Experiment Station. The field survey has been conducted during the 60es. To provide a GIS countywide coverage that consists of polygons defining the soils boundaries and to add enough basic attributes to achieve a fundamental degree of categorization. Open, all-purpose data set.
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Title: New Jersey, Freehold Soil Conservation District, Monmouth County, physical land conditions. Sheet no. 5.
Contributors:- Image data
- 1948
Summary: A scanned historical New Jersey Geological Survey Atlas Sheet shown at a scale of 1:63,360.
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Title: Soil map, Minnesota, Anoka County sheet
Contributors:- Not specified
- 1916
- United States. Bureau of Chemistry and Soils
- University of Minnesota. Agricultural Experiment Station
Summary: Cartographic Details: Scale approximately 1:49,000. Not "1 in. = 1 mi." (W 93°30 ª--W 93°00 ª/N 45°25 ª--N 45°00 ª). Enlarged reproduction. "Soils surveyed by William G. Smith, of the U.S. Department of Agricluture, in charge, and George H. Nesom, and E.G. Roth, of the University of Minnesota." 90 x 82 centimeters
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Title: Washington and northern Idaho showing lines of the Northern Pacific Ry
Contributors:- Not specified
Summary: Relief shown by hachures and spot heights.; Includes indexes to Northern Pacific stations in Washington and Idaho.; Text describing agricultural opportunities of region and illustrations on verso.; "No. 41 Form 6317 25M 3-30 MCG-W." 46 x 81 centimeters
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Title: Vernal Pools: Placer County, California, 1999-2000
Contributors:- Polygon data
- 2000
Summary: This polygon shapefile depicts the distribution of extant vernal pool complexes in Placer Country for use by the United States Fish and Wildlife Service in recovery planning for listed and sensitive species. True color aerial slides from the Deptartment of Water Resources were interpreted, and vernal pool complexes were identified. Complexes more than 40 acres in size were then digitized as polygons and given a density rating (see Resource Fields for attribute definitions). This layer was created to help biologists and resource planners make informed decisions in their recovery and planning efforts. It depicts vernal pool complexes, not individual vernal pools. Since the minimum mapping unit of the coverage is 40 acres, it may not provide the level of detail required for larger scale (smaller area, more site-specific) conservation planning. This coverage was produced based on 1999 aerial photography, supplemented by experience with numerous delineation and inventory projects throughout the vernal pool areas of Placer County. Pre-existing vernal pool delineations served as an additional reference source. Additional documentation is provided with the data. This coverage is a polygon layer of vernal pool complexes in Placer County. In 1995, Dr. Robert F. Holland identified the complexes on aerial photos (the most recent available for each county) and traced the polygons onto USGS 7.5' quads from which they were digitized. Vernal pool complexes were then given a density rating. The coverage was refined in June of 1998, with SPOT Imagery and recent U2 (low-flying aircraft) photography. The layer does not contain delineations of individual vernal pools and was not intended for use in wetland delineations. This coverage allows for assessment of vernal pool areas for Placer County, California. California Department of Fish and Wildlife. (2000). Vernal Pools: Placer County, California, 1999-2000. North Fork Associates. Available at: http://purl.stanford.edu/wz415qy4139 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
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: U.S. Highways, 2008
Contributors:- Line data
- 2002
Summary: U.S. Highways represents the major and minor highways of the United States. These include interstates, U.S. highways, state highways, major roads, and minor roads. This dataset is from the Census 2000 TIGER/Line files. It contains all Class 1, 2, and 3 road segments plus any other road segments necessary to provide network connectivity for the Class_Rte field.
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Title: U.S. Telephone Area Code Boundaries, 2018
Contributors:- Polygon data
- 2018
Summary: U.S. Telephone Area Code Boundaries represents the telephone area codes for the United States. They are also known as Numbering Plan Areas (NPA). The Numbering Plan Areas reflect current and accurate boundary changes both where new NPAs split from existing NPAs and where new NPAs overlay existing NPAs.When an NPA is split, the geographic area covered by the old area code is divided geographically, with one portion retaining the previous area code and the other switching to the new area code. When a new NPA is added as an overlay, the old area code remains unaffected. Instead, all or part of the land covered by the old area code is now covered by the old and new area codes.
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Title: U.S. Census Block Groups, 2017
Contributors:- Polygon data
- 2010
Summary: U.S. Census Block Groups represents the Census block groups of the United States in the 50 states, the District of Columbia, and Puerto Rico.
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Title: U.S. Major Highways, 2008
Contributors:- Line data
- 2002
Summary: U.S. Major Highways represents the major highways of the United States. These include interstates, U.S. highways, state highways, and major roads. This dataset is from the Census 2000 TIGER/Line files. It contains all Class 1 and 2 road segments plus any other road segments necessary to provide network connectivity for the Class_Rte field.
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Title: U.S. Transportation Terminals, 2018
Contributors:- Point data
- 2018
Summary: U.S. Transportation Terminals represents locations within the United States for transportation terminals such as public transport stops, railway stations, ferry terminals, and other significant transportation nodes.
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Title: U.S. States, 2017
Contributors:- Polygon data
- 2010
Summary: U.S. States represents the 50 states, the District of Columbia, and Puerto Rico of the United States.