A meteorite impact that occurred less than 170 million years ago and probably between 60 and 30 million years ago.

Upheaval Dome

Upheaval Dome is an impact structure, the deeply eroded remnants of an impact crater, in Canyonlands National Park southwest of the city of Moab, Utah, in the United States. The crater is located in the Island in the Sky section of the park, and is approximately 42 miles (67 km) by vehicle from Moab.

• http://en.wikipedia.org/wiki/Upheaval Dome
• Page 180 - Dicka, A. B., 2012, 101 American Geo-sites you've gotta see: Mountain Press Publishing Co., 250p.