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.).
Search Results
1883. Rand McNally and Company. Chicago & vicinity, Vicinity of Rock Island & Davenport.; Greenwich and Washington.;Relief shown using hachures.;Shows Illinois railroad lines.;1 m... McNally & Co. (Chicago).
2003. Geological Survey (U.S.) Minerals Information Team. This point shapefile represents the locations of refractory, abrasive, and other industrial minerals operations in the United States. The data repr... National Atlas of the United States.
1952. Geological Survey (U.S.). Contour interval 10 feet.;"Culture and drainage in part compiled from aerial photographs taken 1951. Topography by plane-table surveys 1952";Relief... Geological Survey (U.S.).
1955. Geological Survey (U.S.). Contour interval 10 feet.;"Culture and drainage in part compiled from aerial photographs taken 1952. Topography by plane-table surveys 1953.";Relie... Geological Survey (U.S.)|Geological Survey Division (Urbana, Ill.).
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.
1950. Geological Survey (U.S.). Contour interval 10 feet.;"Culture and drainage in part compiled from aerial photographs taken 1939. Topography by plane-table methods 1948";Relief... Geological Survey (U.S.)|Geological Survey Division (Urbana, Ill.).
2005. National Atlas of the United States. The Satellite View of the Conterminous United States, with Shaded Relief map layer is a 200-meter-resolution simulated-natural-color image of the U... National Atlas of the United States.
2012. Rukstales, Kenneth S. (compiler). This polygon shapefile represents seismic hazards in the United States. The data represent a model showing the probability that ground motion will ... National Atlas of the United States.
1949. Geological Survey (U.S.). Contour interval 10 feet.;"Culture and drainage in part compiled from aerial photographs taken 1940. Topography by plane-table methods 1947";Relief... Geological Survey (U.S.)|Geological Survey Division (Urbana, Ill.).