Siblings Cody Piel, left, Jessica Piel, center, and Kristen Piel, right, don costumes at the Sacred Road’s Book'n-It mobile library float as the Confederated Tribes and Bands of the Yakama Nation and community members commemorate the 166th anniversary of the Treaty of 1855 with a drive-thru Treaty Day parade Wednesday, June 9, 2021 at Yakima Nation Cultural Center in Toppenish, Wash.