sioux

Louis Guinard, once a partner in John Richard’s North Platte bridge, built his own rival crossing six miles upstream in 1859, a venture that outlasted Guinard himself as owner, surviving as a Pony Express station, a Civil War-era military post, and finally Fort Caspar.

French-Canadian trader Louis Guinard built a bridge and trading post below Independence Rock in 1857, hoping to profit from Utah Expedition traffic, only to abandon it two years later for a bigger, and ultimately more dangerous, venture on the North Platte.

When a party of Lakota Sioux raiders attacked a small wagon train of Shoshone, white and mixed-race people in 1868, eight-months-pregnant Woman Dress Lamoreaux stopped the skirmish when she climbed from a wagon and threatened the attackers with drastic consequences from her brother, Gall—their war chief—if they continued the fight.

In 1850, the U.S. Congress authorized a conference to persuade Plains Indian tribes to live and hunt within newly designated, separate territories, and to accept payment for the damage caused by emigrants crossing their lands. The conference in September 1851 drew 10,000 Indians to the confluence of Horse Creek and the North Platte River, 30 miles east of Fort Laramie. The treaty that was signed there, the Horse Creek Treaty of 1851, permanently changed the terms of Indian-white relations on the northern Great Plains.