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Title Author
Alcova Dam and Reservoir Annette Hein
Anchor Dam, History of Annette Hein
Archeology, alpine in Wyoming Rebecca Hein
Big Muddy Oil Field Rebecca Hein
Bighorn Basin, Natural History of the Emilene Ostlind
Boysen Dam, History of Annette Hein
Coal, Wyoming business of Chamois L. Andersen
Colby Mammoth Site WyomingHeritage.org
Como Bluff Stephanie Lowe
Devils Tower WyomingHeritage.org

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Geology & Natural History

John Wesley Powell: Explorer, Thinker, Scientist and Bureaucrat

In 1869 and 1871, John Wesley Powell led two expeditions from Wyoming Territory down the Green and Colorado rivers. These and other explorations brought him to a profound understanding of how the West’s aridity limits its economic prospects. He directed the U.S. Geological Survey from 1881-1894, and his ideas still affect land and water policy today. 

Moon Shadows over Wyoming: The Solar Eclipses of 1878, 1889 and 1918

Three total solar eclipses have crossed Wyoming since territorial times—in 1878, 1889 and 1918. Two in particular drew prominent astronomers and scientific discoveries. These are especially interesting now, with the August 21, 2017 eclipse likely to draw huge crowds to a very different Wyoming from the one that last saw moon shadows in daytime.

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Encyclopedia | Tribal sovereignty, retained by the Eastern Shoshone and Northern Arapaho since before Wyoming statehood,governs wildlife conservation on the more than two million acres of tribal lands on the Wind River Indian Reservation. Game populations have increased steadily since a tribal game code was adopted in 1984. 
Encyclopedia | In 1869 and 1871, John Wesley Powell led two expeditions from Wyoming Territory down the Green and Colorado rivers. These and other explorations brought him to a profound understanding of how the West’s aridity limits its economic prospects. He directed the U.S. Geological Survey from 1881-1894, and his ideas still affect land and water policy today. 
Encyclopedia | Mountaineer Finis Mitchell shared his love of the Wind River Range through postcards, public talks and a famed, hip-pocket hiking guide. He ran a fishing camp, worked on the railroad, stocked mountain lakes with fingerling trout and served in the Wyoming House of Representatives. Mitchell Peak was named in his honor. 
Encyclopedia | Recent, surprising discoveries including a prehistoric village in the Wind River Range above Dubois, Wyo., suggest humans—most likely ancestors of today’s Shoshone people—lived high-mountain lives as long as 10,000 years ago. 
Encyclopedia | Three total solar eclipses have crossed Wyoming since territorial times—in 1878, 1889 and 1918. Two in particular drew prominent astronomers and scientific discoveries. These are especially interesting now, with the August 21, 2017 eclipse likely to draw huge crowds to a very different Wyoming from the one that last saw moon shadows in daytime.
Encyclopedia | No logging, no grazing—even no trespassing? The Yellowstone Timber Land Reserve, the first land to be set aside in what evolved into today’s National Forest system, had a distinctly different character from its successors. Here’s why.
Encyclopedia | Iced drinks on the Oregon Trail? Early emigrants refreshed at the fabled Ice Springs near the Sweetwater River—now known as Ice Slough. But after a decade of trailside chopping and trampling, the spot became less attractive. Later travelers felt deceived by the stories they had heard.
Oral Histories | Former sheepherder, ranch foreman and schoolteacher Henry Jensen was past president of Wyoming’s historical and archeological societies. One day in the early 1990s he and Casper science teachers Dana Van Burgh and Terry Logue drove southwest from Casper to Devil’s Gate, noting all kinds of geology, archeology and history along the way. 

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