Map showing landslides in the Golden Quadrangle, Jefferson County, Colorado
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IMAP↗
Geology topics
H. E. Simpson
Publications and source records attributed to H. E. Simpson.
Map showing areas of potential rockfalls in the Golden Quadrangle, Jefferson County, Colorado
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IMAP↗
Map showing earth materials that may compact and cause settlement in the Golden Quadrangle, Jefferson County, Colorado
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IMAP↗
Map showing man-modified land and man-made deposits in the Golden quadrangle, Jefferson County, Colorado
No abstract available.
Colorado↗
Preliminary engineering geologic map of the Golden quadrangle, Jefferson County, Colorado
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Miscellaneous Field Studies Map↗
Geology of the Yankton area, South Dakota and Nebraska
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Professional Paper↗
Geology of an area about Yankton, South Dakota
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Open-File Report↗