Official description from USGS unavailable; see mention in NGS datasheet for HW3268.
With MARY as our main goal for the day, we began at the Buck Hollow Trail parking area and hiked WNW along the Meadow Spring Trail up to the A-T. To our dismay, when we arrived at the coordinates, we discovered that both MARY and R 17 are located atop a thin sliver of completely exposed rock. We were able to climb high enough to see the station disk and R17, but we just couldn't bring ourselves to climb all the way up with our equipment and stand in the ferocious wind. A trio of hardy German hikers lunching atop the rock was all too eager to help us out, and they took a few very nice closeups of both marks for us. R 17 has been scribbled on but otherwise looks to be in great condition, especially compared to its neighbor on Mary's Rock, MARY (HW3268).