A question I've always wondered about.
When you see people on TV who are mountain climbing or mountain rescue, obviously lots of ropes are involved. I'm just watching SOS Extreme Rescues on iPlayer and on one episode, the rescuer throws up a rope to the casualty to tie around a rock to enable her to climb up, rescue him and both come back down. What happens to the rope that was tied at the top? Is it just left there?
Likewise, the thingies put in cracks to anchor ropes to, are they just left behind?
I'm about as likely to go mountain climbing to find out as I am to drive an F1 car, but I do wonder about these things!