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

General Information

  • Title: Ordovician and Silurian graptolite succession in the Trail Creek area, central Idaho; a graptolite zone reference section
  • Author(s): Carter, Claire, and Churkin, Michael, Jr.
  • Publishing Organization: U.S. Geological Survey
  • Series and Number: Professional Paper 1020 [37 p.]
  • Publication Date: 1977
  • Cross Section: None
  • North Latitude: 43° 52' 4" N (43.8678)
  • South Latitude: 43° 49' 1" N (43.8169)
  • East Longitude: 114° 14' 8" W (-114.2356)
  • West Longitude: 114° 17' 26" W (-114.2906)
  • 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.