The sentinel peaks of Corn Du/Pen-y-Fan dominate the Llia valley skyline
Image credit: Robert Gladstone
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Those lines running down the hill really stand out here. I've tried for years to get some info on them, but nobody seems to know anything about them. Even the RCAHMW aren't sure?
Yeah, they seem much too straight and regular to be rain gulleys, unless the angle means they act as high pressure overflows, so to speak. Dunno... Glacial markings? Can't imagine anyone would consider farming there. Not even in Wales!