Sheep Mountain Anticline

March 05, 2014


Photographer: Ryan Miller
Summary Author: Ryan Miller

The Sheep Mountain anticline, in the Bighorn Basin of Wyoming, formed during the Laramide orogeny. Many of the ranges that form the Rocky Mountains also took shape at this time. Shown above is a railroad cut that runs through this northwest-southeast trending anticline. The limestone cliffs belong to the Madison Formation, deposited during the Mississippian sub-period of the Carboniferous Period. The stream at left is the Bighorn River. Photo taken on May 28, 2013.