Mountain Meadows massacre
1857 CE.
Shown on the map at 37.475°, -113.644°.
The Mountain Meadows Massacre (September 7–11, 1857) was a series of attacks during the Utah War that resulted in the mass murder of at least 120 members of the Baker–Fancher wagon train. The massacre occurred in the southern Utah Territory at Mountain Meadows, and was perpetrated by settlers from the Church of Jesus Christ of Latter-day Saints (LDS Church) involved with the Utah Territorial Militia (officially called the Nauvoo Legion) who recruited and were aided by some Southern Paiute Native Americans. The wagon train, made up mostly of immigrant families from Arkansas, was bound for California, traveling on the Old Spanish Trail that passed through the Territory. After arriving in Salt Lake City, the Baker–Fancher party made their way south along the Mormon Road, eventually stopping to rest at Mountain Meadows. The party's journey occurred amidst hostilities between Mormon settlers and the US government, with war hysteria rampant amongst the Mormons. Acting on rumors of hostile behavior on the part of the travelers, local Mormon militia leaders, including Isaac C. Haight and John D. Lee, made plans to attack them as they camped at the meadow.
Text from the Wikipedia article Mountain Meadows Massacre, licensed CC BY-SA 4.0.