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Publisher
U.S. Geological Survey
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Colorado, Montrose County, Delta CountyEdition | Availability |
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Geologic map of the Black Ridge quadrangle, Delta and Montrose Counties, Colorado
Publish date unknown, U.S. Geological Survey
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Book Details
Edition Notes
Relief shown by contours and spot heights.
"Geology mapped by W.R. Hansen, 1965-66, assisted by J.J. Antony, J.B. Hansen, and E.E. McGregor."
Includes text, stratigraphic section, 3 cross sections, and quadrangle location diagram; latter diagram also on envelope.
"Datum is mean sea level."
"Base by U.S. Geological Survey, 1955."
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Feedback?January 31, 2010 | Edited by WorkBot | add more information to works |
December 9, 2009 | Created by WorkBot | add works page |