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

General Information

  • Title: Giving the Mississippian/Devonian boundary a facelift
  • Author(s): Harper, J.A.
  • Publishing Organization: Pennsylvania Geological Survey
  • Series and Number: Pennsylvania Geology v. 24, no. 3 [p. 9-14]
  • Publication Date: 1993
  • Cross Section: None
  • Find more maps in this area with mapView
  • 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.