Previous Next / The Denver Museum of Nature & Science is committed to the principles of respect, reciprocity, justice, and dialogue to address any and all claims for repatriation On November 16, 1990, Congress passed the Native American Graves Protection and Repatriation Act, known as NAGPRA. This expansive law establishes a process—often called repatriation—for museums to return cultural items and human remains. At the Denver Museum of Nature & Science, NAGPRA has radically improved the Museum’s relationship with Native Americans. The Denver Museum of Nature & Science has returned numerous cultural items through NAGPRA as well as items to Canada and Kenya. The Museum has consulted on all known Native American human remains in its collections and only curates human remains for which informed consent has been given by the individual or her/his family, kin, or community.