Black Rocks (Crossing)
William Crossing, in Guide to Dartmoor, stated: "Below the site of the streaming operations the Wollake enters a glen, on the eastern side of which are some masses of granite called Black Rocks, and having traced its course partly through this, we shall find on the R. bank the remains of what there is documentary evidence to show was once a tin mill..."
This is also the site of Phillpott's Cave. Eric Hemery describes it in "High Dartmoor. p.175" suggesting it is attributed to the author Eden Phillpotts; "The cave was 'adopted' by Eden Phillpotts, before World War I, to be sparsely equipped as a shelter for moormen and others familiar with it. It was cleaned out; gaps in the natural walling were filled with turf, and a cache of preserved food and whiskey was installed in its innermost recess..."
Another theory is given by John Earle, in his book "Walking on Dartmoor. p.130"; "Tony Phillpotts, a hunt servant, used the cave to hide food and drink to be distributed when the local hunt met in this area."