Originally Posted by
4eyedbuzzard
Probably just a past project from Dartmouth Outing Club - that's their sectionc(probably since the AT's inception). Mileage markers were historically made of stone before the automobile age, so they may have just been adding a nostalgic touch plus there's no shortage of granite up here. People up here like to play with rocks, hammers, and chisels, build oddly shaped shelters and privvies, etc. It's a New England thing, we're kind of special (take that however you wish).