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.
Brigham Young and the first band of Mormon pioneers reached the Salt Lake Valley on July 24, 1847. Over the next 22 years, more than 70,000 pioneers crossed the plains and settled in Utah. For the first few years, Brigham Young and the thousands of early settlers of Salt Lake City struggled to survive.