The Northern Cheyenne Tribe was authorized to undertake the responsibilities of the
State Historic Preservation Office on tribal trust and ancestral lands in the year 2002. THPO was
entrusted to identify, preserve, and protect resources significant to the cultural life-ways of the
Cheyenne people. The THPO office was also tasked with ensuring that tribal, state, and federal
agencies consult with the tribe in consideration of any potential effects their proposed
undertakings may have on tribal resources. Furthermore, the THPO operates as a regulatory
office to ensure that agencies consulting with the tribe are in compliance under Section 106 of
the National Historic Preservation Act (1966) and code of federal regulations under 36 CFR 800.
As stipulated in the Cultural Resource Protection Ordinance (83), the Cultural department
shall provide for the efficient and effective identification, control, and management of the
Tribe's Archaeological and Historical resources. THPO has honored the ordinance by
incorporating the Cheyenne language, natural resources, traditional ecological knowledge, and
oral history into each review process. THPO also conducts cultural surveys utilizing both
archaeological and cultural methodologies when completing cultural inventories, which has also
improved the accuracy and efficiency when recording sites.