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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 Streams of the United States, 2014

2014. Geological Survey (U.S.). This map layer shows streams of the United States, Puerto Rico, and the U.S. Virgin Islands. The map layer was produced primarily from the Medium-R... Geological Survey (U.S.).

3. 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.).

4. Arkansas Rivers 2002

1997. Geographic Data Technology, Inc. (GDT). Arkansas Rivers represents streams and rivers within Arkansas. Environmental Systems Research Institute, Inc. (ESRI).

5. Federal Lands of the United States, 2006

1972. National Atlas of the United States. This polygon shapefile contains federally owned or administered lands of the United States, Puerto Rico, and the U.S. Virgin Islands. Only areas of... National Atlas of the United States.

6. Global Map: 1:1,000,000-Scale Canals and Aqueducts of the United States, 2014

2014. National Atlas of the United States. This line shapefile includes Global Map data showing the canals, aqueducts, and the Intracoastal Waterway in the United States, Puerto Rico, and th... National Atlas of the United States.

7. Global Map: 1:1,000,000-Scale Inland Water Areas of the United States, 2014

2014. Geological Survey (U.S.). This polygon shapefile includes Global Map data showing waterbodies and wetlands of the United States, Puerto Rico, and the U.S. Virgin Islands. Th... Geological Survey (U.S.).

8. Global Map: 1:1,000,000-Scale Streams of the United States, 2014

2014. National Atlas of the United States. This line shapefile includes Global Map data showing streams in the United States, Puerto Rico, and the U.S. Virgin Islands. The data are a modifie... National Atlas of the United States.

9. Major Dams of the United States, 2002-2004

2002. Geological Survey (U.S.). This point shapefile portrays major dams of the United States, including Puerto Rico and the U.S. Virgin Islands. The map layer was created by extr... Geological Survey (U.S.).

10. Major Dams: United States and Territories, 2006

2006. Rawson, Peg. This point shapefile depicts major dams in the United States, including Puerto Rico and the U.S. Virgin Islands. The map layer was created by extra... United States. Bureau of Transportation Statistics.