As a complement for all interested (Jon, Tsurugi, Origyptian, Molder, Audrey) here are some views showing what I think is a quarry system of "cutting benches" crossing "cart ruts". I don't send here cart ruts views which would be too numerous, and already existing on the net, nor overviews showing the apparent mess when you discover the site, you can guess. But I can if you ask.
1-The first impression of walking on a cutting bench (on the left is a ancient but maybe more recent quarry zone)
2-A first bench alone with marks on surface
3-Same view with reference lines
4-Discovery of two parallel benches
5-Same view with ref. lines
6-Three parallel benches, note no visible cart ruts there whereas there are plenty all around
7-View with lines
9-With guide lines along parallel benches
10-Discovery of crossing networks of benches and cart ruts
Edited 5 time(s). Last edit at 28-Nov-17 15:02 by Mike D.