GREAT PLAINS TRIBAL CHAIRMEN'S ASSOCIATION, INC.
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The Great Plains Tribal Chairmen's Association, Inc. (GPTCA) is made up of 16 Tribal Chairmen, Presidents, and Chairpersons in the states of North Dakota, South Dakota, and Nebraska.
US Post Office Box 988
Rapid City, SD 57701
Fax: (605) 388-5375