National Geologic Map Database
General Information
- Title: Preliminary geology map and sections of the Hogan 4 Northeast quadrangle, Lewis and Clark and Cascade Counties, Montana
- Author(s): Schmidt, R.G., Swanson, D.A., and Zubovic, Peter
- Publishing Organization: U.S. Geological Survey
- Series and Number: Miscellaneous Geologic Investigations Map I-409
- Publication Date: 1964
- Map Scale: 1:24,000
- Cross Section: Yes
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- 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.