Battle of the Saline River
The Battle of the Saline River in the beginning of August, 1867, was one of the first recorded combats of the Buffalo Soldiers of the U.S. 10th Cavalry. This battle occurred 25 miles northwest of Fort Hays in Kansas on August 2.[see discussion] == Prelude == In the summer of 1867, with realization that the Union Pacific railroad construction in Nebraska would reach Fort Laramie before the Kansas Pacific Railway, and the request of the Denver community for a railroad connection, the route of the Kansas Pacific Railway was diverted from the course of the Republican River to the Smoky Hill River.
Source: Wikipedia — Battle of the Saline River (CC BY-SA 4.0)