The Westward Migration: The Exodus from Nauvoo to Utah

How the Latter-day Saints left their homes in Nauvoo, Illinois, to forge a new life in the Great Salt Lake Valley.

By Garret Merkley · Explainer · Jun 5, 2026

Branched from The Founding of Nauvoo: How the Latter-day Saints Built a City of Refuge

Quick take

The Westward Migration was the forced exodus of Latter-day Saints from Nauvoo, Illinois, starting in 1846.
Led by Brigham Young, pioneers sought religious freedom and safety in the remote Great Salt Lake Valley.
The journey, primarily along the Mormon Trail, was a grueling test of faith, organization, and endurance.
This migration established the foundation for Utah and profoundly shaped the identity of the Church of Jesus Christ of Latter-day Saints.

The Westward Migration, often called the Exodus from Nauvoo, was the large-scale, organized movement of members of The Church of Jesus Christ of Latter-day Saints from Nauvoo, Illinois, to the Great Salt Lake Valley (then part of Mexico, now Utah). Beginning in February 1846, this arduous journey was a desperate search for religious freedom and a place where they could practice their faith without persecution, following years of conflict and violence in the Midwest.

The Push and Pull to the West

The decision to migrate west was driven by immense pressure. After the assassination of their prophet, Joseph Smith, and his brother Hyrum in 1844, escalating mob violence and political opposition made life in Nauvoo unbearable. The Illinois state legislature revoked the city's charter, effectively disbanding its self-governing power. Facing threats of extermination, the Latter-day Saints were effectively expelled from Illinois, creating a powerful "push" factor.

Simultaneously, a vision of a remote, isolated haven in the Great Basin provided a "pull." Brigham Young, as the new leader of the Church, meticulously planned the exodus, envisioning a new Zion far from established American settlements where the Saints could thrive in peace. This promise of religious autonomy and safety fueled their determination to undertake one of the largest organized migrations in American history.

The Journey: Organization and Ordeal

The migration unfolded in phases. The initial exodus in February 1846 saw thousands cross the frozen Mississippi River, establishing temporary camps in Iowa, most notably Winter Quarters (near modern-day Omaha, Nebraska). Here, they spent a brutal winter, enduring widespread disease and death, while preparing for the longer trek.

In April 1847, Brigham Young led the vanguard company—a small, well-equipped group—to scout the route and identify a suitable settlement location. This trailblazing group arrived in the Great Salt Lake Valley in July 1847, declaring, "This is the place." Following their path, hundreds of thousands of Latter-day Saints would subsequently make the journey over the next two decades, traveling primarily by wagon trains along what became known as the Mormon Trail.

Key Challenges of the Trail

Disease: Cholera, scurvy, and other ailments claimed thousands of lives.
Environmental Extremes: Blistering heat, freezing cold, deep snows, and torrential rains.
Resource Scarcity: Limited food, water, and forage for animals across vast stretches of wilderness.
Mechanical Failures: Broken wagons, worn-out shoes, and exhausted livestock were constant hurdles.

Later phases of the migration also included the famous handcart companies (1856-1860), where thousands of poorer converts pulled their belongings across the plains. This method, while more economical, also led to immense suffering and loss of life during particularly harsh winters.

Why This Migration Matters

The Exodus from Nauvoo was a pivotal event in American history and for The Church of Jesus Christ of Latter-day Saints. It demonstrated an extraordinary level of faith, organization, and resilience in the face of extreme adversity. This migration led directly to the founding of Salt Lake City and the establishment of the Utah Territory, profoundly shaping the demographics, culture, and development of the American West. It solidified the unique identity of the Latter-day Saints, forging a communal bond through shared sacrifice and the successful creation of a thriving society in a challenging environment. The principles of self-sufficiency, cooperation, and diligent planning that emerged from this period continue to influence the Church and its members today.

Why did the Latter-day Saints leave Nauvoo so suddenly?

They faced intense persecution, including mob violence and threats of expulsion, which made their continued presence in Illinois untenable. After their city charter was revoked and their leader Joseph Smith was killed, they were effectively forced to leave.

How long did the entire migration take?

While the initial exodus from Nauvoo began in 1846 and the vanguard company reached Utah in 1847, the organized migration of Latter-day Saints to the Great Salt Lake Valley continued for over two decades, until the completion of the transcontinental railroad in 1869.

What was the "Mormon Trail"?

The Mormon Trail was a 1,300-mile route from Nauvoo, Illinois, across Iowa, Nebraska, Wyoming, and into the Salt Lake Valley. It was primarily used by the Latter-day Saints, following parts of other trails like the Oregon Trail, but with specific detours and destinations unique to their journey.

Did everyone walk to Utah?

Many did. While some traveled in wagons, especially during the early phases, thousands of later converts, particularly in the handcart companies, walked the entire distance, pulling their belongings in handcarts due to financial constraints. Even those with wagons often walked alongside them to spare their animals.

What happened when they arrived in the Great Salt Lake Valley?

Upon arrival, the pioneers immediately began irrigating the arid land, planting crops, and establishing settlements. Brigham Young directed the layout of Salt Lake City and the organization of the new community, focusing on self-sufficiency and communal effort to build their new home.

Sources

Church History in the Fulness of Times: Student Manual (2nd ed., 2003). The Church of Jesus Christ of Latter-day Saints.
Arrington, Leonard J. and Bitton, R. Scott. Historical Atlas of Mormonism. Simon & Schuster, 1997.
Roberts, B. H. A Comprehensive History of The Church of Jesus Christ of Latter-day Saints. Deseret News Press, 1930.