MI-16 1979 Geologic Map of Colorado (Tweto)
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The definitive and now-classic state geologic map and explanation sheet for Colorado — “held as one of the finest examples of a state geologic map” — as compiled/mapped by Ogden Tweto (opens in a new window). See MI-63 Geologic Sections Across Colorado (Tweto) (opens in a new window) for cross sections. The original paper map is unfortunately out of print but may occasionally be found on Ebay for those who miss the legacy format! 1 plate (1:500,000). Digital PDF download. MI-16D
Citations
Tweto, Ogden. “MI-16 Geologic Map of Colorado.” Geologic. Miscellaneous Investigations. Denver, CO: Colorado Geological Survey, Department of Natural Resources, 1979. https://coloradogeologicalsurvey.org/publications/tweto-geologic-map-colorado-1979.
