U.S. Forest Service employee Gary Roper (cq) , left takes a core sample from a 150 year old Englemann spruce tree west of the Ophir Creek campground in the San Isabel Forest in the Wet Mountains on June 27, 2007. Fellow FS employee Roy Mask (cq) checks
DENNIS SCHROEDER, U.S. Forest Service employee Gary Roper (cq) , left takes a core sample from a 150 year old Englemann spruce tree west of the Ophir Creek campground in the San Isabel Forest in the Wet Mountains on June 27, 2007. Fellow FS employee Roy Mask (cq) checks (06/27/2007), [435115588] . Denver Public Library Digital Collections, accessed 14/05/2025, https://digital.denverlibrary.org/nodes/view/951734