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1. 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.

2. 1:1,000,000-Scale Waterbodies and Wetlands of the United States, 2014

2014. Geological Survey (U.S.). This polygon shapefile represents waterbodies and wetlands of the United States, Puerto Rico, and the U.S. Virgin Islands. The map layer was produc... Geological Survey (U.S.).

3. 6-Digit Accounting Units, Hydrologic Units: Indiana

2002. United States Geological Survey. WATERSHEDS_HUC06_USGS_IN is a polygon shapefile showing the boundaries of accounting units (HUA) in Indiana. Accounting units are noted by a 6-digi...

4. 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.

5. Active and Dormant Landslides, Elk River Watershed, California, 1940-2000

1940. California Geological Survey, California. Department of Conservation, Marshall, Gerald, and Mendes, Eric. This polygon shapefile depicts active and dormant landslides within the Elk River watershed in Humboldt County, California. This layer does not inc... California Geological Survey.

6. Alluvial contacts (Units): Albion River Watershed, California, 2000

2000. California Geological Survey. This polygon shapefile depicts alluvial contacts in the Albion Watershed region of Mendocino County, California. Alluvail contacts are unconsolidat... California Geological Survey.

7. Annual Projected Water Balance by Subdrainage Area in Kenya, 2000 and 2010

2000. World Resources Institute. This polygon shapefile portrays annual projected water balance by subdrainage area in Kenya for 2000 and 2010. The data was taken from the Kenya Na... World Resources Institute.

8. Antarctic Ice Shelf Areas, 1:10 million (2012)

2012. Patterson, Tom and Kelso, Nathaniel Vaughn. This polygon shapefile depicts year-round ice shelves in Antarctica. Data was derived from the MODIS 2003-2004 Mosaic of Antarctica, but reflects m... North American Cartographic Information Society.

9. Antarctic Ice Shelf Areas, 1:50 million (2012)

2012. Patterson, Tom and Kelso, Nathaniel Vaughn. This polygon shapefile depicts the edges of year-round ice shelves fringing Antarctica. Data was generalized from 10m Antarctic ice shelves derived... North American Cartographic Information Society.

10. Average Water Consumption by Livestock and Wildlife by Subdrainage Area, Kenya, 1994-1996

1994. World Resources Institute. This polygon shapefile represents the average water consumption of livestock and wildlife by sub-basin in Kenya for 1994-96. The greatest water dem... World Resources Institute.

11. Bathymetric Contours for Selected Lakes: Indiana

2012. Indiana Department of Natural Resources, Division of Fish and Wildlife. LAKE_BATHYMETRY_IDNR_IN.SHP provides bathymetric contours for the following 85 lakes in Indiana, with depths calculated from the average shoreline ...

12. Baylands Boundary: San Francisco Bay Area, California, 1999

1999. Bay Area Open Space Council, Conservation Lands Network, San Francisco Bay Area Upland Habitat Goals Project, and GreenInfo Network (Firm). This polygon shapefile represents the edge of the baylands boundary, as published in the San Francisco Estuary Institute's Eco Atlas released in 19... Bay Area Open Space Council.

13. Bodies of Water: Sacramento County, California, 2015

2015. Sacramento County GIS. This polygon shapefile depicts boundaries of bodies of water in the County of Sacramento, California, including canals, dams, the Delta, ponds, res... Sacramento County GIS.

14. Bodies of Water: 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). This polygon shapefile depicts bodies of water in the nine county San Francisco Bay Area Region, California, onto which other thematic data can be ... Bay Area Open Space Council.

15. Bodies of Water: Santa Clara County, California, 2015

2015. Santa Clara Valley Water District (Calif.). This polygon shapefile depicts boundaries of Bodies of Water in the County of Santa Clara, California, including reservoirs, lakes, percolation pon... Santa Clara Valley Water District (Calif.).

16. Bodies of Water: Santa Cruz County, California, 2015

2015. Garcia, Paul and Price, Matt. This polygon shapefile represents bodies of water, including lakes, lagoons, and reservoirs, and harbors, in the County of Santa Cruz, California. ... County of Santa Cruz Information Services Department.

17. Boundaries: Noyo River Watershed, California, 2000

2000. California. Division of Mines and Geology. This polygon shapefile displays the boundaries of the Noyo River Watershed, which lies within the Coast Ranges physiographic province of California... California. Division of Mines and Geology.

18. Boundary: San Francisco Bay, California 2011

2011. Bay Area Open Space Council, GreenInfo Network (Firm), Conservation Lands Network, and San Francisco Bay Area Upland Habitat Goals Project. This polygon shapefile depicts the boundary of the San Francisco Bay in California, including San Pablo Bay and the Carquinez Straight, onto which ... Bay Area Open Space Council.

19. Bulletin 118 - Groundwater Basins and Subbasins, California, 2003

2003. California. Department of Water Resources. The polygon shapefile contains the boundaries of 515 groundwater basins and subbasins as defined by the California Department of Water Resources (B... California. Department of Water Resources.

20. Bulletin 118 - Groundwater Basins and Subbasins, California, 2016

2016. California. Department of Water Resources. This polygon shapefile contains the boundaries of 517 groundwater basins and subbasins as defined by the California Department of Water Resources a... California. Department of Water Resources.