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
Salt Lake City Saint movement, planned the layout in the "Plat of the City of Zion" (intended as a template for Mormon towns wherever they might be built). In his plan the city was to be developed into 135 lots. However, the blocks in Salt Lake City became irregular during the late 19th century when the LDS Church lost authority over growth and before the adoption of zoning ordinances in the 1920s. The original blocks allowed for large garden plots, and many were supplied with irrigation water from ditches that ran approximately where modern curbs and gutters would be laid. The original water