In reply to Arbu:
> As I was climbing Liathach a couple of weeks ago I was disturbed by the activities of a helicopter flying in and out to collect large (and presumably very strong) bags of rocks that someone must have collected on the slopes of Beinn Dearg.
Geological vandalism - they did the same thing on Blencathra/Saddleback, raping and pillaging 15,000 year old pristine peri-glacial screes untouched by man, then dumping the stones for those awful urban staircases in the wrong geological locale. There is a world-famous metamorphic aureole on Blencathra and they completely buggered up the layout of the naturally occurring rock-types. They are ignorant vandals if the same thing is happening that you described.
DC