The larger chain of Mormon settlements, ranging from Canada to
Mexico, were initially established as agricultural centers or to gain access to metals and other materials needed by the expanding Mormon population. The communities also served as waystations for migration and trade centered on
Salt Lake City during the mid to late 19th century. Communities in the generally fertile but relatively dry valleys of the
Great Basin, Southeastern Idaho,
Nevada, and
Arizona were dependent on water supplies. Irrigation systems, including wells, dams, canals, headgates, and ditches were among the first projects for a new community. Road access to timber in the mountains and pasturage for stock were important, as were carefully tended crops, gardens, and orchards.
Initial settlements Brigham Young, LDS Church
president (1847–1877), personally supervised the founding of many outlying communities. Exploring parties were sent out to find settlement sites, and to identify sources of appropriate minerals, timber, and water. Historian
Leonard J. Arrington asserted that within ten years of the LDS arrival in the
Salt Lake Valley, "...nearly 100 colonies had been planted; by 1867, more than 200; and by the time of (Young's) death in 1877, nearly 400 colonies." These colonies had four distinct purposes: "...first, settlements intended to be temporary places of gathering and recruitment, such as Carson Valley in Nevada; second, colonies to serve as centers for production, such as iron at
Cedar City, cotton at
St. George, cattle in Cache Valley, and sheep in
Spanish Fork, all in Utah; third, colonies to serve as centers for proselytizing and assisting Indians, as at
Harmony in southern Utah,
Las Vegas in southern Nevada,
Fort Lemhi (north-central Idaho near the
Lemhi Pass), and present-day
Moab in eastern Utah; fourth, permanent colonies in Utah and nearby states and territories to provide homes and farms for the hundreds of new immigrants arriving each summer." Communities were also established in eastern and southeastern Utah and western Colorado, primarily populated by LDS Church converts from the southern United States. Historians James B. Allen and Glen M. Leonard estimate that at least 120 new LDS-based settlements were founded between 1876 and 1879. =="Jell-O Belt"==