WyoHistory.org | The Online Encyclopedia of Wyoming History

Encyclopedia | A childhood love of adventure eventually led the Belgian Jesuit priest Father Pierre-Jean De Smet to become a missionary to the Indians of the Rocky Mountains. He traveled throughout the northern Rockies, along the way celebrating the first Catholic Mass in what’s now Wyoming on July 5, 1840, during the Green River Rendezvous. In 1851, members of his party named Lake De Smet for him as they... Read More »

The Pedro Mountain Mummy

Encyclopedia | The mystery surrounding the Pedro Mountain Mummy, discovered in the 1930s about 60 miles south of Casper, Wyo., by two gold prospectors, continues to intrigue people. While some sensational media accounts indicated the mummy might have been one of the little people of American Indian folklore, scientists who studied the artifact in detail have concluded that the mummy was an infant who died... Read More »

Butch Cassidy in Wyoming

Encyclopedia | Notorious outlaw Butch Cassidy and his Wild Bunch frequently crossed and hid out in Wyoming when on the run from the law. Cassidy’s 18-month incarceration at the Wyoming State Prison in Laramie, 1894-1896, is a definite fact. Other than that, stories place him and his gang all over the map, from Sundance to Brown’s Hole, and Powder Wash near Baggs to Hole in the Wall near Kaycee.... Read More »

Peace, War, Land and a Funeral: The Fort Laramie Treaty of 1868

Essay | In March 1866, when whites and Indians together at Fort Laramie mourned the death of Mni Akuwin, daughter of Spotted Tail, chief of the Brulé Lakota, a colonel at the post hoped it was a sign of peace between the peoples. Peace hopes were shattered later that spring however, by the arrival of hundreds of troops to build forts on the Bozeman Trail, and two more years of bitter warfare... Read More »

Industry, Politics and Power: the Union Pacific in Wyoming

Essay | The construction of the Union Pacific in 1868 gave rise to the towns, geography of settlement and the economy of new Wyoming Territory in 1869. Obstacles to construction were both physical and financial, and the railroad overcame them with sometimes slapdash results—hastily laid track and rickety bridges, watered stock and Congressional corruption. But the Union Pacific contributed... Read More »

The Old West’s Female Champion: Caroline Lockhart and Wyoming’s Cowboy Heritage

Essay | Caroline Lockhart wrote a handful of novels about Wyoming in the early 20th century. They made her famous and rich, and they hold up well today. At the same time, she was a new kind of activist, a central figure in bringing to the town of Cody and the state of Wyoming a new kind of nostalgia-based culture that both have embraced ever since. Read More »

President Theodore Roosevelt's 1903 Visit to Wyoming

Encyclopedia | In 1903, President Theodore Roosevelt included Wyoming in his 25-state tour of the western United States. He spent nearly three weeks in Yellowstone National Park, gave a speech in Newcastle, and on the return leg from California, left the train long enough for a well-publicized horseback ride from Laramie to Cheyenne, and two extra days politicking and socializing in Wyoming’s capital. Read More »

The Coal Camps of Sheridan County

Encyclopedia | After the Burlington Railroad reached Sheridan, Wyo. in 1892, coal camps—company towns for miners and their families—were established next to a series of mines north of the town. The mines served local and regional markets as well as the railroad. By 1910, a total of around 10,000 people lived in these camps—Dietz, Kooi, Monarch, Acme and Carneyville, later renamed Kleenburn... Read More »