GeoData @ UCB

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31. Civil War Southern States : Rivers, ca. 1864

1864. Harvard University. Center for Geographic Analysis. River locations during the US Civil War in the Confederate States. Vector data extracted from digital map provided by the Library of Congress at ht... Library of Congress, Geography and Map Division.

32. Civil War Southern States : Settlements, ca. 1864

1864. Harvard University. Center for Geographic Analysis. Settlement locations during the US Civil War in the Confederate States. Vector data extracted from digital map provided by the Library of Congress ... Library of Congress, Geography and Map Division.

33. Civil War Southern States : State Boundaries, ca. 1864

1864. Harvard University. Center for Geographic Analysis. State boundaries during the US Civil War in the Confederate States. Vector data extracted from digital map provided by the Library of Congress at h... Library of Congress, Geography and Map Division.

34. Coal Fields of the United States

2001. Eastern Energy Resource Surveys Team (Geological Survey). This polygon shapefile shows the coal fields of Alaska and the conterminous United States. Most of the material for the conterminous United States ... National Atlas of the United States.

35. Construction Minerals Operations

2003. Geological Survey (U.S.) Minerals Information Team. This point shapefile represents construction minerals operations in the United States. The data represent commodities covered by the Minerals Infor... National Atlas of the United States.

36. Costly Landslide Events in the United States

2001. Godt, Jonathan W. This polygon shapefile shows point locations of costly individual landslide events in the 50 United States and Puerto Rico. Landslide locations wer... National Atlas of the United States.

37. Costly Regional Landslide Events in the United States

2001. Godt, Jonathan W. This polygon shapefile contains information on costly regional landslide events in the 50 United States and Puerto Rico. The extents of the regiona... National Atlas of the United States.

38. County Boundaries of the United States, 1980

1980. Geological Survey (U.S.). This polygon shapefile contains the 1980 state and county boundaries of the United States, Puerto Rico, and the U.S. Virgin Islands. The map layer ... Geological Survey (U.S.).

39. County Boundaries of the United States, 1990

1990. Geological Survey (U.S.). This polygon shapefile portrays the 1990 state and county boundaries of the United States, Puerto Rico, and the U.S. Virgin Islands. The map layer ... Geological Survey (U.S.).

40. County Boundaries of the United States, 2000

2000. Geological Survey (U.S.). This polygon shapefile portrays the 2000 state and county boundaries of the United States, Puerto Rico, and the U.S. Virgin Islands. The map layer ... Geological Survey (U.S.).