National Geologic Map Database
General Information
- Title: Geologic map of the Dillon 1 degree x 2 degrees quadrangle, Idaho and Montana
- Author(s): Ruppel, E.T., O'Neill, J.M., and Lopez, D.A.
- Publishing Organization: U.S. Geological Survey
- Series and Number: Miscellaneous Investigations Series Map I-1803-H
- Publication Date: 1993
- Map Scale: 1:250,000
- Cross Section: None
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* See base map disclaimer below
Geologic units referred to in Geolex
Additional Resources
- Links and Downloads:
- Publication (includes original ARC/INFO 7.x GIS data)
- Shapefile version (created by NGMDB, Aug., 2023 )
- For more information, please contact:
- U.S. Geological Survey
- USGS Information Services
- Box 25286
- 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.