Geology topics
R. B. Colton
Publications and source records attributed to R. B. Colton.
Aggregate and riprap resources map of the Wolf Point area, Montana
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IMAP↗
Preliminary glacial map of North Dakota
Data used for map compilation based in part upon maps listed below with modifications by the authors. Data for remaining areas from aerial photographs and reconnaissance studies by the authors.
North Dakota↗
Geologic map of the Porcupine Valley quadrangle, Valley County, Montana
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IMAP↗
Geologic map of the Spring Creek quadrangle, Valley County, Montana
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IMAP↗
Geologic map of the Tule Valley quadrangle, Roosevelt County, Montana
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IMAP↗
Contour map of the bedrock surface of the Broad Brook quadrangle, Connecticut
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IMAP↗
Contour map of the bedrock surface of the Manchester quadrangle, Connecticut
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IMAP↗