The Sioux YMCA (YMCA of the Seven Council Fires) in Dupree has served the Cheyenne River Reservation since 1885, teaching Lakota and Y values. It runs summer Day Camp in three communities (Dupree, Cherry Creek, and White Horse) with weekly themes, costumes, and skits; the overnight Camp Marrowbone on the Cheyenne River; and a Leadership Development Program that trains teen campers to become counselors.
The practical details
We list only what the camp itself publishes, and programs change — dates, prices, ages and availability can all move after we check. Confirm the details on the camp’s own website and contact Sioux YMCA directly before you register or pay. Last checked August 2026.
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★★★★★BlelGreat spot for outdoor adventure in Dupree. Responsive and professional staff. Highly recommended and will be back again next fall.
★★★★Kylund McGill
★★★★★JackGood people, good ideal
★★★★★Aaron FabelWe absolutely love the Sioux Y! Their staff are amazing.
★★★★★Nicholas LayWent here with a YMCA group for a a couple of weeks had a life changing experience seeing how drastically different the daily life out there would be compared to were I'm from. Also to see what those people have to live through and with and the YMCA is helping out with what they can is amazing and the staff are fantastic.