Downtown Salt Lake City by the Mormon pioneers. Downtown Salt Lake began to form in 1847 when Brigham Young chose the site of the Salt Lake Temple of The Church of Jesus Christ of Latter-day Saints, forming the core of the settlement. Temple Square became the center of the grid system, bounded by South Temple, West Temple, North Temple, and East Temple Streets. Streets are named according to their distance and direction from the southeast corner of Temple Square; for example 200 West is two blocks west of this meridian, while 400 South is four blocks south. East Temple was popularly known as Main
Transportation in Salt Lake City County and passes the Salt Lake City International Airport before merging with I-15 west of downtown. The merge continues south for about before I-80 splits east again. It passes through largely residential areas through northern South Salt Lake and the Sugar House neighborhood of Salt Lake City before entering Parley's Canyon, passing through Summit County, and leaving the state on its northeast corner. Interstate 215, known as the "Belt Route", forms a 270° loop around Salt Lake City and its first-ring suburbs. It enters the Rose Park neighborhood in northwestern Salt Lake City from Davis County (where it recently split