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

General Information

  • Title: Keyhole sandstone member of the Fall River formation, northern Black Hills, Wyoming and South Dakota
  • Author(s): Davis, R.E., and Izett, G.A.
  • Publishing Organization: American Association of Petroleum Geologists
  • Series and Number: Bulletin v. 42, no. 11 [p. 2745-2750]
  • Publication Date: 1958
  • Map Scale: 1:2,318,048
  • Cross Section: Yes
  • North Latitude: 44° 50' 42" N (44.8449)
  • South Latitude: 43° 54' 59" N (43.9165)
  • East Longitude: 104° 40' 47" W (-104.6798)
  • West Longitude: 104° 51' 4" W (-104.8512)
  • Corrections to this entry?
* See base map disclaimer below.

Map Preview

(Click image to enlarge)

Downloads from the NGMDB

Poor quality image? Let us know

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