
As whitebark pines in the Northern Rockies succumb to pine beetles and blister rust, hardworking climbers defy gravity to collect pine cones from canopies to supply efforts to breed more resilient and resistant trees.
As whitebark pines in the Northern Rockies succumb to pine beetles and blister rust, hardworking climbers defy gravity to collect pine cones from canopies to supply efforts to breed more resilient and resistant trees.