Which Trail Utilized South Pass As A Passage Through The Rocky Mountains?

Which Trail Utilized South Pass As A Passage Through The Rocky Mountains? South Pass Historic South Pass, seen from the east looking westward towards Pacific Springs Elevation 7,412 ft (2,259 m) Traversed byOregon Trail, California Trail, and Mormon Trail, Wyoming Highway 28 Location Fremont County, Wyoming United States Which 3 trails crossed the Rocky Mountains