Brian Maffly  |  The Salt Lake Tribune

Darren Parry, vice chairman for the Northwestern Band of Shoshone, is leading efforts to commemorate the site of the 1863 Bear River Massacre outside Preston, Idaho. He is pictured here beside a &quot;spirit tree&quot; on U.S. Highway 91 where people have hung offerings to honor Native Americans who died in what is believed to be the deadliest attack by U.S. soldiers during the West's Indian wars.