2- Mountain Building
The Bighorn Mountains
By studying the rocks in the highest parts of the mountains and the lowest parts of the Bighorn Basin to the west, we know the mountains have been uplifted more than 30,000 feet higher than the same level of rocks in the basin.
The Pryor Mountains
They have steep east facing fronts that have eroded back from the plane of the fault zone and gentle slopes off to the west controlled by the by the resistance to erosion of the Madison Limestone.
Did You Know?
The 10,000 year old Bad Pass Trail, marked by rock cairns, was used by American Indians as a trade/travel route, then by mountain men, early settlers, and today by Bighorn Canyon visitors. More...