Eastern Shoshone
Native American tribe in Wyoming
Eastern Shoshone are Shoshone who primarily live in Wyoming and in the northeast corner of the Great Basin where Utah, Idaho and Wyoming meet and are in the Great
Basin classification of Indigenous People. They lived in the Rocky Mountains during the 1805 Lewis and Clark Expedition and adopted Plains horse culture in contrast to Western Shoshone that maintained a Great Basin culture.
The Eastern Shoshone primarily settled on the Wind River Indian Reservation in Wyoming, after their leader, Washakie signed the Fort Bridger Treaty in 1868.
History
The Eastern Shoshone adopted horses much sooner than their neighbours to the North, the Blackfoot Confederacy (made up of three related groups, the Piegan, Siksika, and Kainai). With the advantages that horses provided in battle, such as speed and mobility, the Eastern Shoshone were able to expand to the north and soon occupied much of present-day southern and central Alberta, most of Montana, and parts of Wyoming, and raided the Blackfoot frequently. Meanwhile, their close cousins, the Comanche, split off and migrated south to present-day western Texas. Once the Piegan, in particular, had access to horses of their own and guns obtained from the Hudson's Bay Company via the Cree and Assiniboine, the situation changed. By 1787 David Thompson reports that the Blackfoot had completely conquered most of Shoshone territory, and frequently captured Shoshone women and children and forcibly assimilated them into Blackfoot society, further increasing their advantages over the Shoshone. Thompson reports that Blackfoot territory in 1787 was from the North Saskatchewan River in the north to the Missouri River in the South, and from Rocky Mountains in the west out to a distance of 300 miles (480 km) to the east.
Through the early 1800s, the Eastern Shoshone and Crow fought over the contested Wind River Basin, a prime bison hunting area, culminating in an incident at Crow Heart Butte, where Washakie challenged and defeated a leading Crow warrior for possession of the Wind River Valley.
Begin with the source’s own compact description: “Eastern Shoshone” is native American tribe in Wyoming. The dossier treats that line as a proposition to test through Eastern, Shoshone and Native, not as a finished interpretation.
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The phrase “native American tribe in Wyoming” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Dec 7, 2025. The linked authority identifier is Q307014. None of the 1 selected statements returned an explicit reference. The first chronological checks are 1805, 1868 and 1787.
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This entry incorporates text from “Eastern Shoshone” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.