Between Bieldside and Milltimber on the A93 take the Hillhead Road heading north and stop at Hillhead Farm and cottages. From here I headed east across a small field, jumped a burn, climbed back up, went past some trees and went down another small hill until I spotted a large stone beside which was one of the boundary markers of Aberdeen.
The stone has a single cup mark which is 9cm wide and 4cm deep. In prehistoric times there were a couple of nearby cairns so no surprise that there are cup marked rocks nearby.
Visited 24/8/2017.