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Due to the development of modern Carluke, probing the soil for bottoming stones is not a viable search method. So seeking a plausible route is the goal.

The major geographical obstacle is Jock's Burn, which flows through the town in a ravine that is typically 70 feet deep.

The top edge of the Jock's Burn ravine at this spot is closely aligned with the northeast bearing from the hilltop just outside of town. A turn in the route to an east-northeast bearing points toward the present day walking path. A person in dark clothing can be seen emerging from that path at the center of this picture.