|Shaded-relief map of the U.S.|
All materials are from the U.S. Geological Survey.
Miscellaneous Investigations Series Map I-2206
By Gail P. Thelin and Richard J. Pike
Landforms of the Conterminous United States -
A Digital Shaded-Relief Portrayal,1991.
Large image [ 11.8 MB, .tif ]
Large image [ 2.9 MB, .pdf ]
Accompanying pamphlet [ 7 MB, .pdf ]
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Geologic map of the U.S.