The Battle of Locust Grove was a small-scale confrontation of the American Civil War in the Indian Territory on July 3, 1862.
The Confederates, unable to form a battle line, were quickly dispersed into a thicket of locust trees.
After breaking camp, Weer and his men proceeded to Flat Rock, about 14 miles (23 km) from Fort Gibson, which was then held by the Confederates.
There is a commemorative marker on Scenic Route 412 in Pipe Springs Park, at coordinates 36° 11.889′ N, 95° 8.998′ W.[4] The inscription reads:
Yet, hot fighting in the woods lasted nearly all day.”[5]On April 8, 1864 Weer was arrested for misappropriation of prisoner funds, drunkenness and neglect of duty.