nLegislation and funding provided the authority and means to save archaeological sites from eminent destruction as a result of constructing dams. Archaeological sites were included in the National Environmental Policy Act of 1969.
By early 1970s, salvage efforts
gave rise to Cultural Resource Management (CRM) to ensure conserve rather than just survey or
excavate sites. Measures were taken to curate collections and records
and to ensure public access to information.