Provisional State of Deseret

“When the Mormons arrived in the Salt Lake Basin, their plans for their New Zion envisaged the creation of a vast empire in the West, with a number of far-flung settlements radiating from the central hub of Salt Lake City. Thus their ProvisionalState of Deseret encompassed in its boundaries all of present-day Utah and most of New Mexico, Nevada, and California, with some of Wyoming and the Pacific Northwest included. Although Congress severely reduced this domain when it delineated the Territory of Utah, the Church established colonies at San Bernardino, Carson Valley, and Limhi, on the Salmon River. These missions were placed at strategic locations on the western and northern approaches to the Valley, but the eastern route of travel, through what is now southern Wyoming, still lay open.”