… continue to engage with Native American tribes and seek consent … Copper wrote to 11 Native American tribes last month, saying … treatment” of any Native American artifacts or ancestral remains … all laws related to Native American cultural heritage and will …… continue to engage with Native American tribes and seek consent … Copper wrote to 11 Native American tribes last month, saying … treatment” of any Native American artifacts or ancestral remains … all laws related to Native American cultural heritage and will …