The retrievable SRT (Single Rope Technique) redirect is an advanced climbing method that doesn’t require any extra hardware, making it a valuable tool for trained arborists. This technique is ...

In single-rope technique (SRT), all of your weight is on the same side of the climbing rope, and a Blake's Hitch locks too tightly to slide downward. For that reason, ...

Tree Trek Exploration founder "Wild Bill" Maher uses the double-rope technique to climb 200-foot redwoods. Harnessed in a saddle with a sling around a branch, Maher never climbs with spikes—but ...

If the rappel turns out to be longer than half a rope length, you can still make it safely down to the next anchor, even if you don't have a second rope. The key is rigging a system that makes the ...

One rope was for climbing, the other for hauling gear. The 20-million gallon subterranean lake measures 400 feet long, 100 feet wide, and up to about 100 feet deep. (Photo by Dan Lamping/Cave ...

Single rope technique (SRT) may be used but only where the risk has been justified by a competent person; Wear a climbing helmet (with chinstrap) at all times.

Over the past two weeks, bucket after bucket, by rope and pulley, some 10-20 paleontologists, ... This time, they've had to rappel in and employ single-rope-technique climbing to get out.