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 next recorded explorer was Perin du Luc, who reached the area in 1802-1803. Perhaps the most famed explorers of Atchison County were Lewis and Clark, whose expedition travelled up the Missouri River in the summer of 1804.