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1. 100-Meter Resolution Impervious Surface of Alaska, 2001
2001. Geological Survey (U.S.). This raster layer is a georeferenced image containing impervious surface data for Alaska. Data are in an Albers Equal-Area Conic projection and hav... Geological Survey (U.S.).
2. 100-Meter Resolution Impervious Surface of Hawaii, 2001
2001. Geological Survey (U.S.). This raster layer is a georeferenced image containing impervious surface data for Hawaii. Data are in an Albers Equal-Area Conic projection and hav... Geological Survey (U.S.).
3. 100-Meter Resolution Impervious Surface of Puerto Rico and the U.S. Virgin Islands, 2001
2001. Geological Survey (U.S.). This raster layer is a georeferenced image containing impervious surface data for Puerto Rico and the Virgin Islands. Data are in an Albers Equal-A... Geological Survey (U.S.).
4. 100-Meter Resolution Impervious Surface of the Conterminous United States, 2001
2001. Geological Survey (U.S.). This raster layer is a georeferenced image containing impervious surface data for the conterminous United States. Data are in an Albers Equal-Area ... Geological Survey (U.S.).
5. 108th Congressional Districts for the Delaware River Basin Area'
2004. Delaware River Basin Commission (DRBC). 108th Congressional Districts for the Delaware River Basin Area. These were compiled from the 4 basin states and combined into one layer.
6. 1:1,000,000-Scale National Wilderness Preservation System of the United States, 2014
2014. National Atlas of the United States. This polygon shapefile consists of National Wilderness Preservation System areas of 320 acres or more, in the United States, Puerto Rico, and the U... National Atlas of the United States.
7. 15 Degree Graticule, Northeast United States, 2010
2010. United States. National Oceanic and Atmospheric Administration, United States. National Ocean Service, United States. Department of Commerce, and Coastal Services Center (U.S.). This line shapefile displays graticules (grid lines of latitude parallels and longitude meridians) for the Northeastern United States at 15 degree ... Coastal Services Center (U.S.).
8. 90-Meter Bathymetric Grid, New England, 1999
1999. National Geophysical Data Center, United States. Department of Commerce, United States. National Oceanic and Atmospheric Administration, and United States. National Environmental Satellite, Data, and Information Service. This raster dataset provides bathymetry information at a resolution of 90 meters for New England- from coastal regions to the edge of the continent... National Geophysical Data Center.
9. Abundance Estimates of the Pacific Salmon Conservation Assessment Database, 1978-2008
1978. Pinsky, Malin L., Springmeyer, Dane B., Goslin, Matthew N., and Augerot, Xanthippe. This dataset is a visualization of abundance estimates for six species of Pacific salmon (Oncorhynchus spp.): Chinook, Chum, Pink, Steelhead, Socke... Stanford Digital Repository.
10. Access Points (Fishing and Boating): Pennsylvania
2017. Pennsylvania Fish and Boat Commission. This layer contains the locations of fishing and boating access areas that have been veirified by the Pennsylvania Fish and Boat Commission and are...
11. Active Management and Irrigated Nonexpansion Areas, Arizona, 2002
2002. Arizona. Department of Water Resources. The dataset depicts both active management areas (AMAs) and Irrigated Nonexpansion Areas (INAs) in Arizona. Arizona Department of Water Resources.
12. Administrative Boundaries of National Park System Units, 2011
2011. United States. Bureau of Transportation Statistics. This polygon shapefile depicts service wide boundary set for display and general analysis purposes. This layer is part of the 2014 National Transpo... United States. Bureau of Transportation Statistics.
13. Aerial gamma radiation in Minnesota and adjacent areas of North Dakota and South Dakota, M-83
1996. Lively, R.S. and Morey, G.B. Maps showing general Quaternary age surface geology of Minnesota and distribution of uranium, thorium and potassium-40 in surface sediments, scale ...
14. Aeromagnetic anomaly map of Minnesota, S-11
1982. Chandler, Val W. Aeromagnetic anomaly (total magnetic intensity anomaly (relative to the earth's magnetic field, interpretation of magnetic data collected from airb...
15. Aeromagnetic anomaly map of Minnesota, S-17
1992. Chandler, Val W. Aeromagnetic anomaly (total magnetic intensity anomaly (relative to the earth's magnetic field, interpretation of magnetic data collected from airb...
16. Aeromagnetic map of Minnesota, Carlton and Pine counties, Plate 1
1983. Chandler, Val W. Total magnetic intensity anomaly (relative to the earth's magnetic field), color coded, scale 1:250,000. Interpretation of magnetic data collected...
17. Aeromagnetic map of Minnesota, Carlton and Pine counties, Plate 2
1983. Chandler, Val W. Total magnetic intensity anomaly, contour, scale 1:250,000. Interpretation of magnetic data collected from airborne surveys, the map contours (line...
18. Aeromagnetic map of Minnesota, central region, Plate 1
1985. Chandler, Val W. Total magnetic intensity anomaly (relative to the earth's magnetic field), color coded, scale 1:250,000. Interpretation of magnetic data collected...
19. Aeromagnetic map of Minnesota, central region, Plate 2
1985. Chandler, Val W. Total magnetic intensity anomaly, contour, scale 1:250,000. Interpretation of magnetic data collected from airborne surveys, the map contours (line...
20. Aeromagnetic map of Minnesota, Cook and Lake counties, Plate 1
1983. Chandler, Val W. Total magnetic intensity anomaly (relative to the earth's magnetic field), color coded, scale 1:250,000. Interpretation of magnetic data collected...
21. Aeromagnetic map of Minnesota, Cook and Lake counties, Plate 2
1983. Chandler, Val W. Total magnetic intensity anomaly, contour, scale 1:250,000. Interpretation of magnetic data collected from airborne surveys, the map contours (line...
22. Aeromagnetic map of Minnesota, east-central region, Plate 1
1983. Chandler, Val W. Total magnetic intensity anomaly (relative to the earth's magnetic field), color coded, scale 1:250,000. Interpretation of magnetic data collected...
23. Aeromagnetic map of Minnesota, east-central region, Plate 2
1983. Chandler, Val W. Total magnetic intensity anomaly, contour, scale 1:250,000. Interpretation of magnetic data collected from airborne surveys, the map contours (line...
24. Aeromagnetic map of Minnesota, north-central region - Angle Inlet and Oak Island quadrangles
1998. Chandler, Val W. and Lively, R.S. Total magnetic intensity anomaly, contour, scale 1:100,000.Interpretation of magnetic data collected from airborne surveys, the map contours (lines...
25. Aeromagnetic map of Minnesota, north-central region--Baudette quadrangle
1998. Chandler, Val W. and Lively, R.S. Total magnetic intensity anomaly, contour, scale 1:100,000.Interpretation of magnetic data collected from airborne surveys, the map contours (lines...
26. Aeromagnetic map of Minnesota, north-central region--Bigfork quadrangle
1998. Chandler, Val W. and Lively, R.S. Total magnetic intensity anomaly, contour, scale 1:100,000.Interpretation of magnetic data collected from airborne surveys, the map contours (lines...
27. Aeromagnetic map of Minnesota, north-central region--Blackduck quadrangle
1998. Chandler, Val W. and Lively, R.S. Total magnetic intensity anomaly, contour, scale 1:100,000.Interpretation of magnetic data collected from airborne surveys, the map contours (lines...
28. Aeromagnetic map of Minnesota, north-central region--Fosston quadrangle
1998. Chandler, Val W. and Lively, R.S. Total magnetic intensity anomaly, contour, scale 1:100,000.Interpretation of magnetic data collected from airborne surveys, the map contours (lines...
29. Aeromagnetic map of Minnesota, north-central region--Grygla quadrangle
1998. Chandler, Val W. and Lively, R.S. Total magnetic intensity anomaly, contour, scale 1:100,000.Interpretation of magnetic data collected from airborne surveys, the map contours (lines...
30. Aeromagnetic map of Minnesota, north-central region--Little Fork and International Falls quadrangles
1998. Chandler, Val W. and Lively, R.S. Total magnetic intensity anomaly, contour, scale 1:100,000.Interpretation of magnetic data collected from airborne surveys, the map contours (lines...
31. Aeromagnetic map of Minnesota, north-central region--Roseau quadrangle
1998. Chandler, Val W. and Lively, R.S. Total magnetic intensity anomaly, contour, scale 1:100,000.Interpretation of magnetic data collected from airborne surveys, the map contours (lines...
32. Aeromagnetic map of Minnesota, north-central region--Upper Red Lake quadrangle
1998. Chandler, Val W. and Lively, R.S. Total magnetic intensity anomaly, contour, scale 1:100,000.Interpretation of magnetic data collected from airborne surveys, the map contours (lines...
33. Aeromagnetic map of Minnesota, northwestern region, Plate 1
1989. Chandler, Val W. Total magnetic intensity anomaly (relative to the earth's magnetic field), color coded, scale 1:250,000. Interpretation of magnetic data collected...
34. Aeromagnetic map of Minnesota, northwestern region, Plate 2
1989. Chandler, Val W. Total magnetic intensity anomaly, contour, scale 1:250,000. Interpretation of magnetic data collected from airborne surveys, the map contours (line...
35. Aeromagnetic map of Minnesota, southeastern region, Plate 1
1991. Chandler, Val W. Total magnetic intensity anomaly (relative to the earth's magnetic field), color coded, scale 1:250,000. Interpretation of magnetic data collected...
36. Aeromagnetic map of Minnesota, southeastern region, Plate 2
1991. Chandler, Val W. Total magnetic intensity anomaly, contour, scale 1:250,000. Interpretation of magnetic data collected from airborne surveys, the map contours (line...
37. Aeromagnetic map of Minnesota, southwestern region, Plate 1
1989. Chandler, Val W. Total magnetic intensity anomaly (relative to the earth's magnetic field), color coded, scale 1:250,000. Interpretation of magnetic data collected...
38. Aeromagnetic map of Minnesota, southwestern region, Plate 2
1989. Chandler, Val W. Total magnetic intensity anomaly, contour, scale 1:250,000. Interpretation of magnetic data collected from airborne surveys, the map contours (line...
39. Aeromagnetic map of Minnesota, St Louis county, Plate 1
1983. Chandler, Val W. Total magnetic intensity anomaly (relative to the earth's magnetic field), color coded, scale 1:250,000. Interpretation of magnetic data collected...
40. Aeromagnetic map of Minnesota, St Louis county, Plate 2
1983. Chandler, Val W. Total magnetic intensity anomaly, contour, scale 1:250,000. Interpretation of magnetic data collected from airborne surveys, the map contours (line...
41. Aeromagnetic map of Minnesota, west-central region, Plate 1
1987. Chandler, Val W. Total magnetic intensity anomaly (relative to the earth's magnetic field), color coded, scale 1:250,000. Interpretation of magnetic data collected...
42. Aeromagnetic map of Minnesota, west-central region, Plate 2
1987. Chandler, Val W. Total magnetic intensity anomaly, contour, scale 1:250,000. Interpretation of magnetic data collected from airborne surveys, the map contours (line...
43. Aggregate resource potential of Chisago County, Minnesota, M-116, Plate 1
2001. Meyer, Gary N. and Lusardi, Barbara A. Quaternary geology map showing interpretations of Quaternary (Pleistocene [glacial] and Holocene [post-glacial]) surficial geology (distribution an...
44. Aggregate resource potential of Chisago County, Minnesota, M-116, Plate 2
2001. Meyer, Gary N. and Lusardi, Barbara A. Aggregate (crushed rock, sand and gravel) sources and potential of Chisago County, scale 1:100,000.
45. Aggregate resource potential of Itasca County, Minnesota, M-131, Plate 1
2005. Meyer, Gary N., Jirsa, Mark A., and Jennings, Carrie E. Quaternary geology map showing interpretations of Quaternary (Pleistocene [glacial] and Holocene [post-glacial]) surficial geology (distribution an...
46. Aggregate resource potential of Itasca County, Minnesota, M-131, Plate 2
2005. Meyer, Gary N., Jirsa, Mark A., and Jennings, Carrie E. Aggregate (crushed rock, sand and gravel) endowment map of northwest Itasca County, scale 1:100,000.
47. Aggregate resource potential of Itasca County, Minnesota, M-131, Plate 3
2005. Meyer, Gary N., Jirsa, Mark A., and Jennings, Carrie E. Quaternary geology map showing interpretations of Quaternary (Pleistocene [glacial] and Holocene [post-glacial]) surficial geology (distribution an...
48. Aggregate resource potential of Itasca County, Minnesota, M-131, Plate 4
2005. Meyer, Gary N., Jirsa, Mark A., and Jennings, Carrie E. Aggregate (crushed rock, sand and gravel) endowment map of northeast Itasca County, scale 1:100,000.
49. Aggregate resource potential of Itasca County, Minnesota, M-131, Plate 5
2005. Meyer, Gary N., Jirsa, Mark A., and Jennings, Carrie E. Quaternary geology map showing interpretations of Quaternary (Pleistocene [glacial] and Holocene [post-glacial]) surficial geology (distribution an...
50. Aggregate resource potential of Itasca County, Minnesota, M-131, Plate 6
2005. Meyer, Gary N., Jirsa, Mark A., and Jennings, Carrie E. Aggregate (crushed rock, sand and gravel) endowment map of southeast Itasca County, scale 1:100,000.
51. Aggregate resources inventory, Twin Cities Metropolitan Area, Minnesota, IC-20, Plate 1
1984. Meyer, Gary N. and Jirsa, Mark A. Sand and gravel aggregate resources, geologic map units, seven county metropolitan area, Minnesota, scale 1:250,000.
52. Aggregate resources inventory, Twin Cities Metropolitan Area, Minnesota, IC-20, Plate 2
1984. Meyer, Gary N. and Jirsa, Mark A. Bedrock (crushed rock) aggregate resources, geologic map units, seven county metropolitan area, Minnesota, scale 1:250,000.
53. Agricultural Preserves: Santa Clara County, California, 2015
2015. Santa Clara County (Calif.). Planning Office. This polygon shapefile depicts 10 agricultural preserves located in unincorporated areas of the County of Santa Clara, California. According to Cal... Santa Clara County (Calif.). Planning Office.
54. Air Emission Plants: Pennsylvania
2018. Pennsylvania Department of Environmental Protection. Represents the Primary Facility type Air Emission Plant (AEP) point features. Air Emissions Plant is a DEP primary facility type related to the Air...
55. Air Monitoring Stations: California, 2001-2003
2001. Stephen P. Teale Data Center (Calif.). and California. Air Resources Board. Planning and Technical Support Division. This point shapefile represents all air monitoring stations active in California from 2001 until 2003. The data within the shapefile was obtained f... California. Air Resources Board.
56. Air Pollution Control District, Monterey County, California, 2015
2015. Monterey County (Calif.). This polygon shapefile represents the boundary of the Air Pollution Control District within Monterey County, California. This layer is part of a co... Monterey County (Calif.).
57. Albemarle 2007 Greenway Asphalt Path-existing
2000. Existing greenway asphalt paths for Albemarle County, Virginia.
58. Albemarle 2007 Greenway: Asphalt Paths-proposed
2000. Proposed greenway asphalt paths for Albemarle County, Virginia.
59. Albemarle 2007 Greenway Bikelanes-proposed
2000. Proposed greenway bikelanes for Albemarle County, Virginia.
60. Albemarle 2007 Greenway BikePed Trail-existing
2000. Existing bike-pedestrian combination trails for Albemarle County, Virginia.
61. Albemarle 2007 Greenway Boat Access
2000. Greenway boat access for Albemarle County, Virginia.
62. Albemarle 2007 Greenway Bridges
2000. Greenway bridges for Albemarle County, Virginia.
63. Albemarle 2007 Greenway: Class A Trails-proposed
2000. Proposed greenway class A trails for Albemarle County, Virginia.
64. Albemarle 2007 Greenway Class B Trails-existing
2000. Existing greenway class B trails for Albemarle County, Virginia.
65. Albemarle 2007 Greenway: Class B Trails-proposed
2000. Proposed greenway class B trails for Albemarle County, Virginia.
66. Albemarle 2007 Greenway: Crozet Master Plan
2000. Greenway: Crozet master plan for Albemarle County, Virginia.
67. Albemarle 2007 Greenway: G1 Public Access Points with Facilities
2000. Greenway: G1 public access points with facilities for Albemarle County, Virginia.
68. Albemarle 2007 Greenway: G2 Public Access Points
2000. Greenway: G2 public access points for Albemarle County, Virginia.
69. Albemarle 2007 Greenway: G3 Neighborhood Access Points
2000. Greenway: G3 neighborhood access points for Albemarle County, Virginia.
70. Albemarle 2007 Greenway: Generalized Boat Access
2000. Greenway: generalized boat access for Albemarle County, Virginia.
71. Albemarle 2007 Greenway: Meadowcreek Access
2000. Greenway: Meadowcreek access for Albemarle County, Virginia.
72. Albemarle 2007 Greenway: Multiuse Trails-existing
2000. Existing greenway multiuse trails for Albemarle County, Virginia.
73. Albemarle 2007 Greenway: Multiuse Trails-proposed
2000. Proposed greenway multiuse trails for Albemarle County, Virginia.
74. Albemarle 2007 Greenway: offriver trails - proposed
2000. Proposed greenway offriver trails for Albemarle County, Virginia.
75. Albemarle 2007 Greenway Sidewalks-existing
2000. Existing greenway sidewalks for Albemarle County, Virginia.
76. Albemarle 2007 Greenway: Sidewalks-proposed
2000. Proposed greenway sidewalks for Albemarle County, Virginia.
77. Albemarle 2007 Ragged Mtn Natural Area
2000. Ragged mountain natural area in Albemarle County, Virginia.
78. Albemarle 2007 Shenandoah National Park
2000. Shenandoah National Park in Albemarle County, Virginia.
79. Albemarle 2010 Open Use Agreement Areas
2010. Open use agreement areas in Albemarle County, Virginia.
80. Albemarle 2010 Park Parcels
2010. Park parcels in Albemarle County, Virginia.
81. Albemarle 2010 Ragged Mountain Natural Area
2010. Ragged Mountain natural area in Albemarle County, Virginia.
82. Albemarle 2010 Scenic Streams Overlay
2010. Scenic stream overlays in Albemarle County, Virginia.
83. Albemarle 2010 Shenendoah National Park
2010. Shenendoah National Park in Albemarle County, Virginia.
84. Alexandria 2004 Parks
0. Parks for Alexandria, Virginia.
85. Ambient and fixed station network groundwater monitoring point data (1985 - 1998): Pennsylvania
1999. PA Department of Environmental Protection. This coverage represents the point locations and data for 1,106 groundwater quality monitoring points sampled under the PA DEP Fixed Station Networ...
86. AMC Pennsylvania Highlands: Pennsylvania
2005. The state of PA that falls within the Higlands Regional Study Area designated by the USFS. Plus, the extended area designated by the Appalachian Mo...
87. Amphibian and Reptile Specimen Provenances: San Francisco Bay Area, California, 2011
2011. Bay Area Open Space Council, Conservation Lands Network, San Francisco Bay Area Upland Habitat Goals Project, and GreenInfo Network (Firm). The University of California, Berkeley Museum of Vertebrate Zoology (MVZ) collection of amphibians and reptiles contains over 265,000 catalogued sp... Bay Area Open Space Council.
88. Anchorages, Northeast United States, 2013
2013. Baldwin Group. This polygon shapefile represents anchorages in the Northeastern United States. The areas described are designated as special anchorage areas for p... Coastal Services Center (U.S.).
89. Annual Growth of Biomass for Vegetation Outside of Croplands: Kenya, 2002
2002. This polygon shapefile depicts the annual growth of biomass outside of croplands as well as the theoretically harvestable biomass yield outside of ... World Resources Institute.
90. Annual Particulate Matter (Annual PM-2.5) Non-Attainment Designations in Region 9, 2011
2011. United States. Environmental Protection Agency, Region IX. This polygon shapefile contains designated areas for particulate matter < 2.5 microns, according to the annual National Ambient Air Quality Stan... United States. Environmental Protection Agency, Region IX.
91. Aquaculture, Northeast United States, 2014
2013. SeaPlan. This polygon shapefile represents aquaculture regions in the northeastern United States. Aquaculture in the northeast region is a diverse, vibrant ... Northeast Ocean Data.
92. Aquatic Community Classification Project: Pennsylvania
2004. Aquatic Community Classification Project, prepared by the Western Pennsylvania Conservancy.
93. Archaeological Sensitivity, Monterey County, California, 2015
2015. Monterey County (Calif.). This polygon shapefile contains areas of archaeological sensitivity within Monterey County, California. Archaeological sensitivity zones are those ... Monterey County (Calif.).
94. Areas of High Potential for Large Scale Solar Facilities, Arizona, 2014
2014. University of Arizona. Cooperative Extension. The REOA model approach used to generate this dataset incorporates two main objectives (physical and economic) and a range of sub-objectives to det... University of Arizona. Cooperative Extension.
95. Areas of High Potential for Small Scale Solar Facilities, Arizona, 2014
2014. University of Arizona. Cooperative Extension. The REOA model approach used to generate this dataset incorporates two main objectives (physical and economic) and a range of sub-objectives to det... University of Arizona. Cooperative Extension.
96. Areas of Land Subsidence, Arizona, 2014
2014. Arizona. Department of Water Resources. The Arizona Department of Water Resources Geophysics/Surveying Unit has been collecting and processing Interferometric Synthetic Aperature Radar (I... Arizona Department of Water Resources.
97. Arlington 2003 Future Parks
1991. Future parks for Arlington, Virginia.
98. Arlington 2003 Northern Virginia Regional Park Authority Areas
1991. Northern Virginia Regional Park Authority areas for Arlington, Virginia.
99. Arlington 2003 Park Playgrounds
1991. Park playgrounds for Arlington, Virginia.
100. Arlington 2003 Private Open Space
1991. Private open space for Arlington, Virginia.