Tensions in Fort Utah mounted after Mormons murdered Old Bishop, and Young ordered an attack on Utes, called the Battle at Fort Utah. This was shortly followed by the Walker War. Fillmore, Utah, intended to be the capital of the new territory, was established in 1851. In 1855, efforts to subdue and evangelize to local Native people led to outposts in Fort Lemhi on Idaho's Salmon River, Las Vegas, Nevada and Elk Mountain in east-central of present-day Utah. The experiences of returning members of the Mormon Battalion were also important in establishing new communities. On their journey west, the Mormon soldiers had identified dependable rivers and fertile river valleys in Colorado, Arizona and southern California. In addition, as the discharged men traveled to rejoin their families in the Salt Lake Valley, they moved through southern Nevada and southern Utah. Jefferson Hunt, senior Mormon officer of the Battalion, actively searched for settlement sites, minerals and other resources. His report encouraged 1851 settlement efforts in Iron Country, near present-day Cedar City. These southern explorations eventually led to Mormon settlements in St. George, Utah, Las Vegas and San Bernardino, California, as well as communities in southern Arizona. By 1885, Mormon communities were being established in northern Mexico. Legacy The Mormon pioneers are celebrated annually on July 24 in the State of Utah, known as Pioneer Day. Salt Lake City also has the Mormon Pioneer Memorial Monument, where Young, Eliza R. Snow, and other Mormon pioneers are buried and where a memorial exists dedicated to all who crossed the plains to the Salt Lake Valley. Additionally, the "Pioneer" (characterized as "Pioneer Pete") is Lehi High School's mascot. In some places, Mormons hold an event called "Pioneer Trek" for people who are ages fourteen to eighteen. In participating in the trek, the youth dress as pioneers and pack a few things to carry in handcarts. They go on a hike for a couple of days so they can experience what the pioneers had. During this multi-day event, camp organizers sometimes require youth to avoid the use of technology or anything that the pioneers did not have on their journeys, to enhance the experience. Mormon Pioneer Overland Travel Database The Mormon Pioneer Overland Travel gathers information from journals, church history records, and other materials to locate the company in which an ancestor traveled across the plains to get to Utah. This covers known and unknown wagon