COLORADO: Weld Co; Pawnee National Grasslands - June 2023
TEXAS: Cochrane Co; west of Morton - April 2022
SOUTH DAKOTA: Stanley Co; Fort Pierre National Grasslands - December 2021
TEXAS: Brewster Co; Marathon - September 2020
TEXAS: Hudspeth Co; Hueco plains - July 2020
TEXAS: Brewster Co; Marathon - July 2020
NEW MEXICO: Harding Co; Kiowa/Rita Blanca National Grasslands - July 2019
IDAHO: Owyhee Co; Owyhee uplands - July 2019
OREGON: Malheur Co; on Three Forks Rd - June 2017
UTAH: Emery Co; near Goblin Valley State Park - June 2017
TEXAS: Brewster Co; near Alpine - August 2016
MONTANA: Lake Co; National Bison Range - July 2013
WYOMING: Niobrara Co - August 2011
MONTANA: Lake Co; National Bison Range - August 2011
NEW MEXICO: Socorro Co; west of Carrizozo - August 2009
TEXAS: Jeff Davis Co; near Valentine - July 2009