South Pass was discovered in 1812 by a small band of Astorians led by Robert Stuart as they traveled east with dispatches for John Jacob Astor. It was "rediscovered" in 1824 by a party led by Jedediah Smith as they searched for a winter crossing through the Wind River Mountain Range. William Sublette led a small caravan of wagons to South Pass in 1828. While the party did not take the wagons over the pass, they proved that wagon travel was possible.

Captain Benjamin Bonneville took the first wagons over South Pass into the Green River Basin in 1832. But it was Lt. John Charles Fremont who would be credited with widely publicizing the route over South Pass as a result of his expedition in 1842. Scattered references to the easy passage over the Rocky Mountains had appeared in newspapers for a decade, but Fremont ignited enthusiasm for South Pass by explaining that a traveler could go through the pass without any "toilsome ascents".

With the discovery of South Pass, the great western migration began. Thousands of Mormons, future Oregonians and Californians would use the trail in the following twenty years.

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Show me all markers in:  Lander, WY  |  Fremont County  |  82520  |  Wyoming  |  United States of America

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