In reply to philhilo:
Apparently it is an SSSI because of the geology. The big clear out of trees is to make the geology more visible from the (rickety) overlook up in the Stonecentre
Hopefully the raves etc will be discouraged as they leave a huge mess (see thread about Lawrencefield!) Dog walkers and viewers of the rock will probably be encourage. It seems to be just climbers who will be actively discouraged. Unfortunately that is the landowners prerogative, unless the BMC can negotiate with them.
Most of this comes from the conversation with the workers who were chopping down the trees.
Post edited at 19:40