Technically, none. The Mormon pioneers founded thousands of cities scattered throughout the Western United States, mostly concentrated in present-day Utah, Idaho, Wyoming, Arizona, Nevada, and California. They proposed a state called "Deseret" to the United States government, which covered all of Utah, parts of Nevada, Arizona, Idaho, Wyoming, and Nevada. The United States government drew their own borders to found the states that exist today.
So, the Mormons had nothing to do with deciding the current states names or borders, but they did found many of the cities within those states.
Members of the Church of Jesus Christ of Latter Day Saints (commonly called "Mormons") founded the state of Utah after they were kicked out of Ohio, Missouri, and Illinois. They originally named the state "Deseret."
The Church of Jesus Christ of Latter-day Saints (commonly called the "Mormon" church) was founded in upstate New York. Since the earliest days of the Church, missionaries have been sent to preach the gospel, and therefore members and congregations have popped up in other places aside from where Church Headquarters is located. Headquarters then moved to Ohio, then to Illinois and Missouri. Once the saints were kicked out of Missouri and asked to leave Illinois, they traveled to Utah, where Church Headquarters has been since 1847. However, only about 10% of the Church's membership lives in Utah. About 30% live in states other than Utah and 60% live in other countries.
The Mormon trail started at Nauvoo, Illinois and crossed Iowa to Winter Quarters, Nebraska and ended at Salt Lake City, Utah. Therefore the trail passed through only 3 states and that was Iowa, Nebraska & Wyoming.
Most of the travelers on the Mormon Trail were Mormon converts from the eastern United States and Europe.
Although the first Mormons to travel the trail were leaving Nauvoo, Illinois, the actual start of the trail is officially in Iowa. From there it passes through Nebraska and Wyoming before ending in Utah.
The Mormon trail was taken by a religious group commmonly called the Mormons. They were fleeing religious persecution in the eastern united states and walked to Utah - the path they took is often called the Mormon trail. The Mormon battalion trail is different. The government drafted a couple thousand Mormons to fight in the Mexican American war. The battalion trail is the trail they walked from Utah down through Arizona and into san Diego. They basically just walked there, they never saw a battle or fired a shot. They were allowed to return home around 3 years later.
The Mormon trail was first used in 1846-47 and stopped being used around 1870, when the transcontinental railroad came through.
The Mormon Trail began in 1847.
The Mormon Trail and the Oregon trail followed the same route through much of the Midwest, until the Mormon Trail split off into Utah through Wyoming. No doubt the two groups exchanged help and supplies. It's also likely that some Oregon Trail travelers may have taken a detour through Mormon settlements in Utah to rest, wait out winter weather, or gather supplies.
Most Mormons followed the Mormon Trail, which was roughly the same as the Oregon trail until the Mormon trail split off to Utah in Wyoming. Some Mormon pioneers took a boat around South America, docked in California, and travelled to Utah through Nevada.
The Mormon Trail started in February 1846.
Mormon Trail was created on 1978-11-10.
The Mormon Trail was traveled almost constantly for over 20 years. As the trail goes through the center of the United States, the weather was typically hot and somewhat dry in the summer, and cold and snowy in the winter.
The Mormon Trail was used by members of the Church of Jesus Christ of Latter-day Saints (Commonly called "Mormons") in their search to find religious freedom in the western United States.