Black Hills Geological Map.

Black Hills Geological Map.
Originally uploaded in Integrating Research and Education:Impacts on American Indian Lands:Pine Ridge.

Image 5491 is a 212 by 175 pixel JPEG
Uploaded: Oct25 05

Last Modified: 2007-06-08 11:18:07
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The file is referred to in 1 page
Image courtesy of USGS.
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