The pass was used by Ute bands to reach the hunting grounds of South Park. In the 19th century the pass was used by white trappers to traverse the Front Range. During the Pike's Peak Gold Rush of the 1860s the pass was heavily used by prospectors eager to reach the placer gold fields at the headwaters of the South Platte near Fairplay and other South Park mining communities. The increase in traffic led to the widening of the trail into a wagon road; during the Colorado Silver Boom the pass became one of the main routes of entry for eager immigrants to Leadville, Breckenridge, and Aspen.