… in part on excavating Native American gravesites, is shuttering some … sacred items under the Native American Graves Protection and Repatriation … Remains of Thousands of Native Americans Were Returned to Tribes … more than 3,500 Native American remains that it …… in part on excavating Native American gravesites, is shuttering some … sacred items under the Native American Graves Protection and Repatriation … Remains of Thousands of Native Americans Were Returned to Tribes … more than 3,500 Native American remains that it …