The BBC reported tonight that Knight’s Peak, on Skye’s Pinnacle Ridge, has been re-surveyed and shown to be lower than previously thought – reduced from 3002 feet (915m) to 2999 feet and six inches, or 914m. The significance is that this has brought a reclassification from a Munro Top to a lesser Corbett Top. The Gazetteer for Scotland was duly updated. The surveyors used GPS technology. I do hope they realise that GPS isn’t terribly accurate in the z-dimension?