First Peoples Mountain
The peak was formerly named for Lieutenant Gustavus Cheyney Doane, a U.S. Army cavalry officer who escorted the Washburn-Langford-Doane Expedition into Yellowstone in 1870.On the southwestern portion of the lake rose a high mountain of a yellow rock, forming a divide or water-shed in the center of the great basin, beyond which the waters flowed south and west.This valley has a uniform width of about three miles, is level and swampy through its whole extent, with numerous lakelets of considerable size scattered at intervals over its surface.South of Bridger's Lake, and beyond the Snake River divide, were seen two vast columns of vapor, thirty miles away, which rose at least 500 feet above the tops of the hills.The Great Plains Tribal Chairman's Association stated that Gustavius Doane should not be honored because of his role in murdering 200 Native American people, predominantly women and children who were sick with smallpox, in the Marias Massacre.