In reply to radial47:
Worth mentioning Wilderness which, although having minor value as a crag, is the scene of one of the few avalanche tragedies in the peak. Just before the moor edge path leading to Chew Res "disappears".
Also the disused railway mentioned in the return leg takes a steep turn up an inclined plane ( walking up the access road) where a donkey engine at the top hauled up tubs of clay to help in the construction of Chew Reservoir. Hard to see from the track , more visible from the opposite side of the valley.
Post edited at 19:04