The Wildhorse Foundation is managed by the Confederated Tribes of the Umatilla Indian Reservation in partnership with Wildhorse Resort & Casino.

The CTUIR homeland is the area known today as northeastern Oregon and southeastern Washington. Each year, the Wildhorse Foundation makes grants to eligible organizations in that homeland area, which includes Morrow, Umatilla, Union, and Wallowa counties in Oregon and Benton, Columbia, and Walla Walla counties in Washington, along wi