50 THE DALES OF DERBYSHIRE. 
Grey rock presents itself here and there amidst the foliage, 
and the same striated grey rock forms the side of the valley 
and the hills beyond. We pass through a gorge, the sides 
of which closely approach one another, the river flowing at 
our feet. On the other hand, if we approach the Dale 
from the Peveril side, we have Thorpe Cloud on our left, 
a fair view of the Dale before us, and the grey rock 
shewing itself in bare patches on the hill sides, and in 
detached pieces all around us. Here however we have no 
gorge, for we know the Dove does not find an outlet at 
this point. Further up the Dale we find the sides fairly 
wooded, the grey rock coming to the surface in places, and 
shewing itself in columns to the left, and in detached pieces 
among the rocks to the right, the river occupying the valley 
between. Still farther on, the sides, or at least one of them, 
becomes more precipitous, and we see their bases occupied 
by the debris of the grey rock mixed with soil. Soon 
through the Dale, we are presented with views of surging 
beauty and grandeur, the grey rock always forming the 
boundary of our vision, and forcing itself upon our notice 
at every turn. As~*we advance we notice to our right a 
cave-mouth or archway, hollowed out’in one of the strata 
of the grey rock, and, on examination, it needs very little 
thought to satisfy ourselves that this cave was once filled 
with running water, and at this point I may, I think, with- 
out anticipating much, observe that we have our first clue 
to Dale formation. If we enter the archway we find there 
is still running water beneath the general debris, and if we 
continue our exploration, we find an irregular cavern, 
extending far into the bowels of the earth, through irregular 
masses of solid grey rock. The phenomena of which this 
is an example, will be referred to more in detail farther 
on, but I wish to point out, that in the valley of the Mani- 
fold, not far from here, as the crow flies, the Manifold 
forsakes its usual bed, traverses an underground course for 
