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1. Australasia: River Network, 30s resolution, 2008

2008. World Wildlife Fund. This river network (stream lines) map for Australasia is derived from the flow direction map for Australasia. The flow accumulation map for Austral... Geological Survey (U.S.).

2. Europe: River Network, 15s resolution, 2008

2008. World Wildlife Fund. This river network (stream lines) map for Europe is derived from the flow direction map for Europe. The flow accumulation map for Europe is used fo... Geological Survey (U.S.).

3. Europe: River Network, 30s resolution, 2008

2008. World Wildlife Fund. This river network (stream lines) map for Europe is derived from the flow direction map for Europe. The flow accumulation map for Europe is used fo... Geological Survey (U.S.).

4. Fairfax 2006 Chesapeake Bay Areas

2008. Chesapeake bay areas for Fairfax County, Virginia.

5. Fairfax 2006 Hydrology Lines

2008. Hydrology line features for Fairfax County, Virginia.

6. Fairfax 2006 Hydrology Lines

2008. Hydrology line features for Fairfax County, Virginia.

7. Fairfax 2006 Hydrology Polygons

2008. Hydrology polygon features for Fairfax County, Virginia.

8. Fairfax 2006 Hydrology Polygons

2008. Hydrology polygon features for Fairfax County, Virginia.

9. Fairfax 2006 Perinnial Streams

2008. Perinnial streams for Fairfax County, Virginia.

10. Fairfax 2006 Watersheds

2008. Watersheds for Fairfax County, Virginia.

11. Groundwater Elevation Change, California, Spring 2008 to Spring 2013

2008. California. Department of Water Resources. This point shapefile represents changes in groundwater levels in California. These data represent groundwater changes between spring 2008 and sprin... California. Department of Water Resources.

12. Groundwater Elevation Change Contours, California, Spring 2008 to Spring 2013

2008. California. Department of Water Resources. This line shapefile represents changes in groundwater levels in California. These data represent groundwater changes between spring 2008 and spring... California. Department of Water Resources.

13. Land Use: San Francisco Bay Area, California, 2008

2008. Bay Area Open Space Council, Conservation Lands Network, San Francisco Bay Area Upland Habitat Goals Project, and GreenInfo Network (Firm). This polygon shapefile depicts land use for the nine county San Francisco Bay Area Region, California, originlly derived from the California Depart... Bay Area Open Space Council.

14. Landmarks: San Mateo County, California, 2013

2008. County of San Mateo Information Services Department. This polygon shapefile depicts landmark features for the County of San Mateo and includes features such as civic buildings, hospitals, event venues... County of San Mateo Information Services Department.

15. Loudoun 2005 Major Water Polygons

2008. Major water polygon features for Loudoun County, Virginia.

16. Loudoun 2005 Major Watersheds

2008. Major watersheds for Loudoun County, Virginia.

17. Loudoun 2005 Stream Cross-Sections

2008. Streem cross-sections for Loudoun County, Virginia.

18. Loudoun 2005 Water Bodies

2008. Water bodies for Loudoun County, Virginia.

19. Slope Channel Classification: San Francisco Bay Area, California, 2008

2008. Bay Area Open Space Council, Conservation Lands Network, San Francisco Bay Area Upland Habitat Goals Project, and GreenInfo Network (Firm). This polyline shapefile depicts data compiled within the nine county San Francisco Bay Area Region, California using the following methods: 1) Usin... Bay Area Open Space Council.

20. Stormwater Runoff Outfalls: Santa Clara County, California, 2008

2008. Santa Clara Valley Water District (Calif.). This point shapefile depicts centroid locations of Stormwater Runoff Storm Drain Outfalls, for outfalls greater than or equal to 18 inches in diame... Santa Clara Valley Water District (Calif.).