I had a rather lovely day stomping up Holne Ridge, Bench Marking. On the way back down Dad and I skirted Venford Reservoir. In the middle of the reservoir is a now submerged stone bridge.. with a Bench Mark on it! I have never seen the reservoir low enough to expose the bridge (unlike the one at Fernworthy) but maybe one day I will be able to find out if that B.M. is still there..