The Indian agent at Fort Laramie negotiates…
1857 CE
He rides against the Cheyenne in the spring of 1857.
Major John Sedgwick leads part of the expedition up the Arkansas River, and via Fountain Creek to the South Platte River.
Sumner's command rides west along the North Platte to Fort Laramie, then down along the Front Range to the South Platte.
The combined force of four hundred troopers travel east through the plains searching for Cheyenne.