National Geologic Map Database
General Information
- Title: Age of volcanic activity in the San Juan Mountains, Colorado
- Author(s): Steven, T.A., Mehnert, H.H., and Obradovich, J.D.
- Publishing Organization: U.S. Geological Survey
- Series and Number: Professional Paper 575-D
- Larger Work: Geological Survey Research 1967, chapter D
- Publication Date: 1967
- Map Scale: 1:1,000,000
- Cross Section: None
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Geologic units referred to in Geolex
Additional Resources
- Links and Downloads:
- Publication (PDF, 42.8MB)
- For more information, please contact:
- U.S. Geological Survey
- USGS Information Services
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- Denver, CO 80225
- Phone: (303) 202-4700 or 1-888-ASK-USGS
- Fax: (303) 202-4710
* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.