climbing rescue

In the winter of 1986, three highly experienced Yosemite wall climbers were trapped for days in a blizzard on Half Dome's South Face.

The autonomous iSAVE-U drone is capable of long-lining climbers off walls up to 50 miles away.

When Ken Murphy soloed up an overhanging route to help a climber in a dire situation, he said, climbing “never felt so easy.”