Visit our new Education Section

Explore the ​Oregon Trail and the Indian Wars, the first two of an upcoming series of education packages on These packages include articles, detailed maps, lesson plans for field trips to the historic sites, videos and interactive quizzes about the Oregon, California, Mormon and Pony Express trails and about the Indian Wars of the turbulent 1860s and 1870s.
​Read more about the Oregon Trail | ​Read more about the Indian Wars | Visit the Education Page

Latest Articles

Fort Reno and Cantonment Reno: Indian Wars Outposts on Powder River

Encyclopedia | Two military posts were built a few miles apart during the Indian Wars near the strategic Bozeman Trail crossing of Powder River—Fort Reno in the 1860s and Cantonment Reno in the 1870s. The first was one of three forts whose existence provoked the tribes into war. The second was an important... Read More »

Wind River Exposé in 1980s Led to National Oil and Gas Reforms

Essay | Recurring oil theft on the Wind River Reservation in the 1970s eventually led to better practices that focus on preventing such losses and protecting American Indian tribes’ oil and gas revenues.  Read More »

Aerials to Zephyrs: A Brief History of the Casper Army Air Base

Encyclopedia | The Casper Army Air Base was built quickly in 1942 to train bomber crews for World War II combat. The facility trained more than 16,000 men before the end of the war. Its population grew to a third of the size of Casper’s, bringing prosperity and a lively social life to the town. The base... Read More »

Coal Slurry: an Idea that Came and Went

Essay | The highly controversial ETSI coal slurry pipeline, proposed in the 1970s to move millions of tons coal from Wyoming’s Powder River Basin to power plants Oklahoma, Arkansas and Louisiana, was never built, due to falling 1980s energy prices and stiff opposition from railroad companies. Read More »

Wyoming’s Uranium Drama: Risks, Rewards and Remorse

Encyclopedia | The story of uranium in Wyoming is a high-stakes drama whose cast includes fever-driven prospectors, ranchers defending their property rights, government officials intent on national security, entrepreneurs, engineers and world-class mining companies. Read More »

Clarence D. Clark, Longtime U.S. Senator

Encyclopedia | Evanston lawyer Clarence Clark became Wyoming’s first congressional representative in 1890. In 1895, the legislature elected him to the U.S. Senate. Sen. F. E. Warren, Rep. Frank Mondell and Clark made an all-Republican congressional triumvirate for more than two decades until Clark lost to... Read More »

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