ONLY thing that I can think of is the "slash" of boulder/rocks on the BRP above UGCV; dunno, if it ABOVE the Smyrna, Va. "area". Some of it MAY have been "natural" with "cuts" made in the building of the Blue Ridge Parkway, BEFORE reaching Bear Wallow Gap... I have to review my BUILDING THE BLUE RIDGE book. There is a picture of "Buck" W.T. Wright on his donkey & dog, Tippy near-by. "Buck" has an umbrella & bag of "chestnuts"... going into Buchanan, Va. I have seen two "pics" of "Buck" with his umbrella; if it was closed & down... "Treasure" may be "open"; if it was open & up... "Treasure" was CLOSED, COVERED, & PROTECTED... what one "old-timer" (CSA History "nut") told me. MORE later.