It is the mission of the Ancestral Lands Conservation Corps to lead our nations back to cultural and ecological well being. The Ancestral Lands Conservation Corps is specifically designed to engage Native American youth and young adults. Ancestral Lands Conservation Corps serves local tribal communities in the regions we operate. Native American applicants are preferred. National Park Service Mission: Our Mission The National Park Service preserves unimpaired the natural and cultural resources and values of the National Park System for the enjoyment, education, and inspiration of this and future generations. Pipestone National Monument has a three-fold purpose: protect the pipestone quarries for use by American Indian people; preserve, protect, and interpret natural and cultural resources;