This low range turns westward in a curve through the Rattlesnake Mountains towards the high Wind River Mountains (Gannett Peak, 3,775 ft.), an anticlinal range within the body of the mountain system, with flanking strata rising well on the slopes.
Within four months (1842) he surveyed the Pass and ascended to the summit of the highest of the Wind River Mountains, since known as Fremont's Peak, and the interest aroused by his descriptions was such that in the next year he was sent on a second expedition to complete the survey across the continent along the line of travel from Missouri to the mouth of the Columbia river.
In the Wind River Range, farther S.E., areGannett Peak (13,775 ft.), the highest point in the state, and Fremont: Peak (13,720 ft.).
Limestone occurs in thick formations near Lava Creek, and in the valley of the East Fork of the Yellowstone river; also near the summit of the Owl Creek range, and in the Wind River range.
The Wind River Reservation, under the Shoshoni School, is in the central part of the state.
Ashley with a considerable party explored and trapped in the Sweetwater and Green river valleys, and in 1826 wagons were driven from St Louis to Wind river for the Rocky Mountain Fur Company.
The United States exploring expedition, commanded by John Charles Fremont, explored the Wind River Mountains and the South Pass in 1842, under the guidance of Kit Carson.