Archaeological resource
Archaeological resource means any material remains of human life or activities which are at least 100 years of age, and which are of archaeological interest.
(5) The Federal Land Manager may determine that certain material remains, in specified areas under the Federal Land Manager's jurisdiction and under specified circumstances, are not or are no longer of archaeological interest and are not to be considered archaeological resources under this part. Any determination made pursuant to this paragraph (a)(5) shall be documented. Such determination shall in no way affect the Federal Land Manager's obligations under other applicable laws or regulations. Prior to making a determination that material remains are not or are no longer archaeological resources, the Federal Land Manager shall consult with the Navajo Nation to obtain their concurrences.