National Geologic Map Database
General Information
- Title: Twin River Group (upper Eocene to lower Miocene); defined to include the Hoko River, Makah, and Pysht Formations, Clallam County, Washington
- Author(s): Snavely, P.D., Jr., Niem, A.R., and Pearl, J.E.
- Publishing Organization: U.S. Geological Survey
- Series and Number: Bulletin 1457-A [p. A111-A120]
- Larger Work: Sohl, N.F., and Wright, W.B., Changes in stratigraphic nomenclature by the U.S. Geological Survey, 1977
- Publication Date: 1978
- Map Scale: 1:807,591
- Cross Section: None
- North Latitude: 48° 23' 27" N (48.3908)
- South Latitude: 47° 51' 59" N (47.8664)
- East Longitude: 122° 55' 5" W (-122.9181)
- West Longitude: 124° 43' 59" W (-124.7331)
- Corrections to this entry?
* See base map disclaimer below.
Find more maps in this area with mapView
Geologic units referred to in Geolex
Additional Resources
- Links and Downloads:
- View the publication from the USGS Publications Warehouse
-
This Product is available from the USGS Store
If you have further questions about how to acquire the product, 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.