Almost inaudible: A leaf falling: 20: Audible: Rustles of autumnal leaves: 30: Very quiet: Whispering: 40: Living room, quiet classroom: 50: Limited sound: Refrigerator working, car driving past: 55: Percolating coffee-maker: 60: Audible: Sound of human voice, machinery: 70: Irritating: Television set on loud, vacuum cleaner, several people on the telephone: 75: Constant sound
The Dominguez-Escalante expedition was the first on it, traveling from Utah Lake to present-day Scipio. Jedediah Smith traveled most of it in 1826 and 1827, and other trappers, including Ewing Young, Kit Carson, and Peter Skene Ogden, followed. John C. Fr?nt mapped the country up to Utah Lake in 1844, and in 1848 Miles Goodyear took a pack train over the entire Salt Lake-Los Angeles route.
The first Spanish explorers entering the Utah region in 1776 found Gosiute, Paiute, Shoshone, and Ute Indian tribes living there. Other Spanish explorers also arrived, but Spain chose not to settle the area. In 1821, Mexico gained independence of Spain and took control of Utah. The first American explorers entered Utah during the early 1800s. In 1824, Jim Bridger was the first white man to reach the Great Salt Lake. Hundreds of fur-traders created trails through the Wasatch Mountains. By 1840, many were crossing central Utah on their way to California.