Westward Expansion Trails the Great Salt Lake in Utah. The Mormon Trail followed part of the Oregon Trail and then branched off at the fur trading post called Fort Bridger, founded by famed mountain man Jim Bridger. Heading south and following river valleys southwestward to the valley of the Great Salt Lake, Brigham Young led the first Mormons into present-day Utah during 1847. The Mormon Trail is 1,300 miles long and extends from Nauvoo, Illinois to Salt Lake City, Utah. The Mormon Trail was used for more than 20 years after the Mormons used it and has been reserved for sightseeing. The initial
Salt Lake City the eastern city limits. The burgeoning population of Salt Lake City and the surrounding metropolitan area, combined with its geographical situation, has led to air quality becoming a top concern for the populace. The Wasatch Front is subject to strong temperature inversions during the winter, which trap pollutants and lower air quality. The Utah Division of Air Quality closely monitors air quality and issues alerts for voluntary and mandatory actions when pollution exceeds federal safety standards. Protests have been held at the Utah State Capitol and Democratic lawmakers have introduced legislation in the Utah State Legislature to make public transportation