U.S. Geological Survey Home AASG Logo USGS HOME CONTACT USGS SEARCH USGS
National Geologic Map Database

General Information

  • Title: Dark shale unit of Devonian and Mississippian age in northern Wyoming and southern Montana [Article 64]
  • Author(s): Sandberg, C.A.
  • Publishing Organization: U.S. Geological Survey
  • Series and Number: Professional Paper 475-C
  • Larger Work: Geological Survey Research, 1963, short papers in geology and hydrology
  • Publication Date: 1963
  • Map Scale: 1:3,000,000
  • Cross Section: None
  • North Latitude: 46° 0' 0" N (46.0000)
  • South Latitude: 43° 1' 59" N (43.0330)
  • East Longitude: 106° 12' 0" W (-106.2000)
  • West Longitude: 111° 31' 1" W (-111.5170)
  • Corrections to this entry?
* See base map disclaimer below.
Find more maps in this area with mapView

Map Preview

(Click image to enlarge)

Downloads from the NGMDB

Poor quality image? Let us know

Additional Resources

* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.