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.
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2001. Geological Survey (U.S.) Minerals Information Team. This point shapefile represents locations of crushed stone operations in the United States. These data were obtained from information reported volu... National Atlas of the United States.
2002. National Atlas of the United States. The color conterminous United States shaded relief data were derived from National Elevation Dataset (NED) data, and show the terrain of the conter... National Atlas of the United States.
2002. Geological Survey (U.S.) Minerals Information Team. This point shapefile includes sand and gravel operations in the United States. These data were obtained from information reported voluntarily to th... National Atlas of the United States.
2005. Geological Survey (U.S.). This line shapefile represents railroads in the conterminous United States and Alaska at 1:2,000,000. This is a replacement for the December 1998 m... Geological Survey (U.S.).
2014. National Atlas of the United States. This line shapefile represents railroads in the conterminous United States and Alaska for 2014 at 1:1,000,000 scale. This is a revised version of t... National Atlas of the United States.
2014. National Atlas of the United States. This line shapefile includes Global Map data showing railroads in the conterminous United States and Alaska. The data are a modified version of the... National Atlas of the United States.
2012. National Atlas of the United States. This line shapefile represents railroads in the conterminous United States and Alaska for 2012 at 1:1,000,000 scale. This layer is part of the 1997... National Atlas of the United States.
2003. Geological Survey (U.S.). Water Resources Division. Wisconsin District. This polygon shapefile contains the shallowest principal aquifers of the conterminous United States, Hawaii, Puerto Rico, and the U.S. Virgin Islan... Geological Survey (U.S.).
2003. Geological Survey (U.S.) Minerals Information Team. This point shapefile represents locations of nonferrous metal mines in the United States. The data represent commodities covered by the Minerals In... National Atlas of the United States.