Fiduciary Trust Officer: Cheyenne River Agency
BIA Social Services Bldg
PO Box 325
Eagle Butte, SD 57625
Is OST holding money for you?
OST is seeking current addresses for Individual Indian Money (IIM) account holders. All Whereabouts Unknown (WAU) accounts have either interests in lands and/or funds to be disbursed to rightful owners. If your name is on the list, You may call the OST Cheyenne River Agency at 605.964.7707 and complete the attached form and provide a copy of your picture ID