Battle of Salt River Canyon
1872 CE.
Shown on the map at 33.583°, -111.366°.
The Battle of Salt River Canyon, the Battle of Skeleton Cave, or the Skeleton Cave Massacre was the first principal engagement during the 1872 Tonto Basin Campaign under the command of Lieutenant Colonel George Crook. It was part of the Yavapai War from 1871 to 1875 against the Yavapai people, a Native American tribe in Arizona.
Text from the Wikipedia article Battle of Salt River Canyon, licensed CC BY-SA 4.0.