A traditional Shoshone-Bannock story tells how Ejupa the coyote spilled water and fish from his basket, chased the rushing stream, and tried to stop it with dams that became Idaho Falls, American Falls, Twin Falls, Shoshone Falls, and Hells Canyon, while archaeological evidence shows Native American people have lived in southern Idaho for thousands of years with seasonal lifeways tied closely to the Snake River, its fish, roots, seeds, berries, and game. After Euro-American exploration, travel on the Oregon Trail, and gold discoveries in the 1860s, conflict grew as settlers, emigrants, and miners occupied land and resources, leading to the creation of reservations; descendants continue to live in the region today, including the Shoshone-Bannock Tribes at Fort Hall, established by the 1868 Treaty of Fort Bridger, and the Shoshone-Paiute Tribes at Duck Valley, established in 1877, both of which adopted constitutional governments in 1936 and maintain traditional customs alongside farming, ranching, and other work. In the early 1900s, Ira Burton Perrine promoted irrigation in what was then a sagebrush desert, and with financing from Stanley Milner, Frank Buhl, and Peter Kimberly, the Buhl-Kimberly Corporation and the Twin Falls Land and Water Company built Milner Dam and an extensive canal network, completed in 1905, that diverted the Snake River and transformed hundreds of thousands of acres into the agricultural Magic Valley; after later rehabilitation and power development from 1990 to 1992, the dam remained central to irrigation as springs and tributaries below it restore the river downstream.