Salt Lake County, Utah Utah Territory after traveling what settlers later called Emigration Canyon. Brigham Young, their leader, declared "This is the place" after seeing the valley. Compared to eastern regions, it seemed arid and unpromising to some of the migrants. Settlers used extensive irrigation to develop agriculture and the flourishing, self-sufficient city, known then as Great Salt Lake City. Thousands of Mormons joined them in the next several decades. The county was officially organized on January 31, 1850, with slightly more than 11,000 residents recorded. Mormon settlements were scattered across the valley and beyond. They relocated the territorial capital to Great Salt Lake
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