"Dan White" wrote in message
...

"R.H." wrote in message
...
Just posted some more photos tonight:

http://puzzlephotos.blogspot.com/



284 looks like a cleat (wrong term) for mountain climbing. You stick
that
in a rock crevice and it opens up to make a good hold. The rope
through the
cleat supports your weight.

dwhite

Piton ?

Kris