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1. Cities and Towns of the United States, 2004

1972. National Atlas of the United States. This point shapefile includes cities in the United States, Puerto Rico and the U.S. Virgin Islands. These cities were collected from the 1970 Natio... National Atlas of the United States.

2. Global Map: Airports of the United States, 2014

2014. National Atlas of the United States. This point shapefile represents airports in the United States, Puerto Rico, and the Virgin Islands. This layer includes 1:1 million scale data from... National Atlas of the United States.

3. 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.).

4. 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.

5. Significant United States Earthquakes, 1568-2009

1568. Geological Survey (U.S.). This point shapefile contains the locations and attributes of significant, historic earthquakes that caused deaths, property damage, and geological... National Atlas of the United States.

6. Streamflow Gaging Stations of the United States, 2013

2013. Geological Survey (U.S.). This point shapefile contains selected streamflow gaging stations of the United States, Puerto Rico, and the U.S. Virgin Islands, in 2013. Gaging s... Geological Survey (U.S.).