Middle Fork Canyon

USA / Montana / Toston /
 canyon / gorge, National Natural Landmark
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Middle Fork Canyon illustrates rocks deformed by the crustal movements that created the Rocky Mountains. It is an outstanding example of a canyon cut across the grain of the geologic structure by a superposed stream. Few places more clearly illustrate the effects of erosion and stream superposition.
Nearby cities:
Coordinates:   46°7'40"N   111°6'9"W
This article was last modified 3 years ago