Abstract
Geologists have long been interested in the Uinta Mountains, partly because of the unusual erosional features, but chiefly, perhaps, because of the orientation with respect to most mountain ranges of the Cordilleran region. These mountains, which form the largest east-west-trending range in the western hemisphere, are in northeastern Utah and northwestern Colorado, just south of the Utah-Wyoming and Colorado-Wyoming boundary. They extend as a physiographic unit from Kamas, Utah, on the west, to Cross or Junction Mountain, Colorado, on the east, a distance of approximately 160 miles. The width of the range, averaging about 45 miles, varies considerably, and, because of certain structural features, is somewhat greater toward the eastern end.
As a structural element, the Uinta Range is a prominent feature of the Rocky Mountain system and extends into the north-south-trending Wasatch Range and possibly even into the Oquirrh Range, still farther west. Eastward, its anticlinal axis extends . . .
