Steve Grigg and Frank Collinson
A small scheme supplying water to Lydford under the auspices of the Tavistock Rural District Council (TRDC) can be found alongside Doe Tor brook (between Doe Tor and Brat Tor) and not far from WD 15 (War Department) stone. The water came from Doe Tor brook (there was no reservoir). Apparently there was a fenced off area (no longer in place), around the extraction point from which there was an open leat channel. There are still 4 standing stones at each corner of the previously fenced off enclosure, each bearing the initials TRDC. Source of information taken from Dave Brewer Dartmoor Boundary Markers (2nd Edition)