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1. United States Counties (Generalized)

1992. Environmental Systems Research Institute (Redlands, Calif.). United States Counties (Generalized) represents the counties of the United States in the 50 states and the District of Columbia. Esri.

2. United States Drainage Systems (Generalized)

1992. Environmental Systems Research Institute (Redlands, Calif.). United States Drainage Systems (Generalized) is a line theme representing the major drainage systems within United States. Esri.

3. United States Geological Survey (USGS) 1:100,000 Topographic Quadrangle Series Indexe, 2012

1992. Environmental Systems Research Institute (Redlands, Calif.). United States Geological Survey (USGS) 1:100,000 Topographic Quadrangle Series Indexes is a polygon theme representing the geographic extent of USG... Esri.

4. United States Geological Survey (USGS) 1:24,000 Topographic Quadrangle Series Index, 2010

1992. Economic and Social Research Institute (Reston, Va.). United States Geological Survey (USGS) 1:24,000 Topographic Quadrangle Series Index is a polygon theme representing the geographic extent of USGS 1... ESRI.

5. United States Geological Survey (USGS) 1:24,000 Topographic Quadrangle Series Index, 2012

1992. Environmental Systems Research Institute (Redlands, Calif.). United States Geological Survey (USGS) 1:24,000 Topographic Quadrangle Series Index is a polygon theme representing the geographic extent of USGS 1... Esri.

6. United States Geological Survey (USGS) 1:250,000 Topographic Quadrangle Series Index, 2012

1992. Environmental Systems Research Institute (Redlands, Calif.). United States Geological Survey (USGS) 1:250,000 Topographic Quadrangle Series Indexes is a polygon theme representing the geographic extent of USG... Esri.

7. United States Lakes (Generalized)

1992. Environmental Systems Research Institute (Redlands, Calif.). United States Lakes (Generalized) is a polygon theme that represents the major lakes within United States. Esri.

8. United States Major Parks, 1992-1997

1992. United States. National Park Service and Environmental Systems Research Institute (Redlands, Calif.). This polygon shapefile represents National Parks, National Forests, State and local parks and forests within the United States at 1:100,000 scale. ... Environmental Systems Research Institute (Redlands, Calif.).

9. United States Major Parks, 2012

1992. National Park Service, Environmental Systems Research Institute (Redlands, Calif.), and TomTom North America, Inc. United States Major Parks is a polygon theme representing National Parks, National Forests, State and local parks and forests within the United Sta... Esri.

10. United States Rivers (Generalized)

1992. Environmental Systems Research Institute (Redlands, Calif.). United States Rivers (Generalized) is a polyline theme representing the major rivers within the United States. Esri.

11. United States States (Generalized), 2012

1992. Environmental Systems Research Institute (Redlands, Calif.). United States States (Generalized) is a polygon theme representing the 50 states and the District of Columbia of the United States. Attribute infor... Esri.

12. U.S. Counties (Generalized) 1992-2013

1992. Environmental Systems Research Institute (Redlands, Calif.). This polygon shapefile represents the counties of the United States in the 50 states and the District of Columbia at 1:3,000,000 scale. This layer ... Environmental Systems Research Institute (Redlands, Calif.).

13. U.S. Counties (Generalized), 2013

1992. U.S. Counties (Generalized) represents the counties of the United States in the 50 states and the District of Columbia.

14. U.S. Drainage Systems (Generalized), 1992

1992. Esri. U.S. Drainage Systems (Generalized) represents the major drainage systems within United States. Esri.

15. U.S. Drainage Systems (Generalized) 2000

1992. Environmental Systems Research Institute, Inc. (ESRI). U.S. Drainage Systems (Generalized) represents the major drainage systems within United States. Environmental Systems Research Institute, Inc. (ESRI).

16. U.S. Drainage Systems (Generalized) 2002

1992. Environmental Systems Research Institute, Inc. (ESRI). U.S. Drainage Systems (Generalized) represents the major drainage systems within United States. Environmental Systems Research Institute, Inc. (ESRI).

17. U.S. Drainage Systems (Generalized), 2013

1992. U.S. Drainage Systems (Generalized) represents the major drainage systems within United States.

18. U.S. Lakes (Generalized), 1992

1992. Esri. U.S. Lakes (Generalized) represents the major lakes within United States. Esri.

19. U.S. Lakes (Generalized) 2000

1992. Environmental Systems Research Institute, Inc. (ESRI). U.S. Lakes (Generalized) represents the major lakes within United States. Environmental Systems Research Institute, Inc. (ESRI).

20. U.S. Lakes (Generalized) 2002

1992. Environmental Systems Research Institute, Inc. (ESRI). U.S. Lakes (Generalized) represents the major lakes within United States. Environmental Systems Research Institute, Inc. (ESRI).

21. U.S. Lakes (Generalized), 2013

1992. U.S. Lakes (Generalized) represents the major lakes within United States.

22. U.S. Major Parks 2008

1992. National Park Service. U.S. Major Parks represents National Parks, National Forests, State and local parks and forests within United States. ESRI.

23. U.S. Major Parks, 2013

1992. National Park Service. U.S. Major Parks represents National Parks, National Forests, State and local parks and forests within the United States.

24. U.S. Parks 2000

1992. National Park Service. U.S. Parks represents National Parks, National Forests, State and local parks and forests within United States. Environmental Systems Research Institute, Inc. (ESRI).

25. U.S. Parks 2002

1992. National Park Service. U.S. Parks represents National Parks, National Forests, State and local parks and forests within United States. Environmental Systems Research Institute, Inc. (ESRI).

26. U.S. Rivers (Generalized) 2000

1992. Environmental Systems Research Institute, Inc. (ESRI). U.S. Rivers (Generalized) represents the major rivers within United States. Environmental Systems Research Institute, Inc. (ESRI).

27. U.S. Rivers (Generalized) 2002

1992. Environmental Systems Research Institute, Inc. (ESRI). U.S. Rivers (Generalized) represents the major rivers within United States. Environmental Systems Research Institute, Inc. (ESRI).

28. U.S. Rivers (Generalized), 2013

1992. U.S. Rivers (Generalized) represents the major rivers within the United States.

29. U.S. Road Routes (Generalized) 2000

1992. Environmental Systems Research Institute, Inc. (ESRI). U.S. Road Routes (Generalized) represents interstate highways and major roads connected by administrative class and route number within the United ... Environmental Systems Research Institute, Inc. (ESRI).

30. U.S. Road Routes (Generalized) 2002

1992. Environmental Systems Research Institute, Inc. (ESRI). U.S. Road Routes (Generalized) represents interstate highways and major roads connected by administrative class and route number within the United ... Environmental Systems Research Institute, Inc. (ESRI).

31. U.S. Roads (Generalized) 2000

1992. Environmental Systems Research Institute, Inc. (ESRI). U.S. Roads (Generalized) represents interstate highways and major roads within the United States. Environmental Systems Research Institute, Inc. (ESRI).

32. U.S. Roads (Generalized) 2002

1992. Environmental Systems Research Institute, Inc. (ESRI). U.S. Roads (Generalized) represents interstate highways and major roads within the United States. Environmental Systems Research Institute, Inc. (ESRI).

33. U.S. States (Generalized), 2013

1992. U.S. States (Generalized) represents the 50 states and the District of Columbia of the United States.

34. USGS 1:100,000 Topographic Quadrangle Series Index, 1992

1992. Environmental Systems Research Institute (Redlands, Calif.) and Geological Survey (U.S.). This polygon shapefile represents the geographic extent of USGS 1:100,000 topographic maps (30- by 60-minute quadrangles) for the coterminous U.S. ... Environmental Systems Research Institute (Redlands, Calif.).

35. USGS 1:250,000 Topographic Quadrangle Series Index, 1992

1992. Environmental Systems Research Institute (Redlands, Calif.) and Geological Survey (U.S). This polygon shapefile represents the geographic extent of USGS 1:250,000 topographic maps (1- by 2-degree quadrangles) for the coterminous U.S. fo... Environmental Systems Research Institute (Redlands, Calif.).