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1. 1:1,000,000-Scale County Boundary Lines of the United States, 2014

2014. Geological Survey (U.S.). This polygon shapefile contains the county boundaries of the United States, Puerto Rico, and the U.S. Virgin Islands. This layer was derived from t... Geological Survey (U.S.).

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 Contours of Alaska

2014. Geological Survey (U.S.). This line shapefile shows elevation contour lines for Alaska. The map layer was derived from the 100-meter resolution elevation data set which is p... National Atlas of the United States.

4. 1:1,000,000-Scale Contours of Hawaii

2014. Geological Survey (U.S.). This line shapefile shows elevation contour lines for Hawaii. The map layer was derived from the 100-meter resolution elevation data set which is p... National Atlas of the United States.

5. 1:1,000,000-Scale Contours of Puerto Rico and the U.S. Virgin Islands

2014. Geological Survey (U.S.). This line shapefile shows elevation contour lines for Puerto Rico and the U.S. Virgin Islands. The map layer was derived from the 100-meter resolut... National Atlas of the United States.

6. 1:1,000,000-Scale Contours of the Conterminous United States

2014. Geological Survey (U.S.). This line shapefile shows elevation contour lines for the conterminous United States. The map layer was derived from the 100-meter resolution eleva... National Atlas of the United States.