Yuma Crossing
Immediately after the Mexican–American War in 1848, the U.S. Army built Fort Yuma here to protect travelers from Indians raiding the area. It was the center point of conflict in the Yuma War of 1850–53. From 1864–1890, the fort and nearby facilities was the main army base to support the US Army's efforts to control the Indians throughout the greater southwest.
Battle at Fort Utah
The Battle at Fort Utah (also known at Fort Utah War or Provo War) was a battle between the Timpanogos Tribe and remnants of the Nauvoo Legion at Fort Utah in modern-day Provo, Utah. The Timpanogos people initially tolerated the presence of the settlers, and the two groups enjoyed some moments of mutual friendship. However, after three Mormons murdered a Timpanogos man called Old Bishop and a hard winter where Timpanogos took around 50 Mormon cattle, settlers in Fort Utah petitioned to go to war with the Timpanogos. Isaac Higbee, Parley P. Pratt and Willard Richards convinced Brigham Young to exterminate any Timpanogos hostile to the Mormon settlement. Young sent the Nauvoo Legion down with Captain George D. Grant. and later sent General Daniel H. Wells to lead the army. After the Timpanogos defended themselves from their village and an abandoned cabin, they fled their camp. The Mormons pursued the Timpanogos from Chief Old Elk's tribe and any other Timpanogos they found in the valley, killing Timpanogos from Chief Old Elk's tribe and other tribes even if they had no history of attacking the Mormons. The Nauvoo Legion killed around 100 Timpanogos.