Rocky Mountain Front

This Piece is 32" tall by 49" wide 

The Rocky Mountain Front is a somewhat unified geologic and ecosystem area in North America where the eastern slopes of the Rocky Mountains meet the plains.

The Rocky Mountain Front in Montana from the Canada–US border south to about Helena is heavily deformed by faulting, folding, and overthrusting. During the Sevier orogeny mountain-building event about 115 and 55 million years ago, what is known as the Cordilleran foreland thrust-and-fold event occurred along the east side of the Rocky Mountains in northwest Montana. The thrust-and-fold belt does not extend all the way south through Montana. Instead, it cuts west above Three Forks continues south—crossing the Snake River Plain and skirting the west side of the Colorado Plateau before cutting west again to enter California. Although most of this mountain-building has since been obliterated by additional orogeny and volcanic activity, most of it still exists in northwestern Montana.The Rocky Mountain Front in this area represents some of the highest changes of elevation within a short distance anywhere in North America. Much of this part of the front, including the Lewis Range and Livingston Range, has suffered heavy glaciation