The Mormon Migration and the Creation of Utah

What It Covers

Between 1846 and 1869, roughly 70,000 Mormon pioneers fled violent persecution in Illinois and Missouri, traveling over 1,000 miles along a self-blazed trail through desert terrain to establish a permanent settlement in Utah's Great Salt Lake Valley.

Key Questions Answered

• •Persecution-driven migration: Mormon expulsion from Missouri in 1838 and Illinois in 1846 followed escalating mob violence, government-sanctioned removal orders, and the 1844 assassination of founder Joseph Smith—demonstrating how sustained state-level hostility can force entire religious communities to relocate across national frontiers.
• •Advance-party logistics: Brigham Young deployed a 1,600-person advance group two months early to build roads, restore bridges, dig wells, and plant crops along the route—a phased migration model that made subsequent travel viable for elderly, sick, and young members crossing hostile terrain.
• •Mormon Trail vs. Oregon Trail: Young deliberately avoided the Oregon Trail to minimize contact with non-Mormons, routing 12,000–15,000 migrants through harsher desert conditions instead. The chosen path through modern Utah offered isolation and mountain streams suitable for irrigation despite warnings against agricultural settlement there.
• •Statehood blocked by religious bias: Utah applied for statehood repeatedly after 1849, proposing a territory covering modern Utah, most of Nevada, and parts of five other states. Admission was denied until 1896, contingent on Mormon leadership formally renouncing polygamy—other states had joined the union without meeting comparable population thresholds.