National Geologic Map Database
General Information
- Title: Minerals of Colorado, a 100-year record
- Author(s): Eckel, E.B.
- Publishing Organization: U.S. Geological Survey
- Series and Number: Bulletin 1114
- Publication Date: 1961
- Map Scale: 1:500,000
- Cross Section: None
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* See base map disclaimer below
* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.