Amongst many puzzles to be solved is the function of the stone markers found in the fields and woods below Bathwick Wood and Sham Castle. The current thinking is that they mark the location of 19th-century adits driven into the hillside by the Duke of Cleveland in order to capture spring water.
The monitoring is a winter task, before the wild garlic, nettles and other vegetation start to grow and hide the marker stones and other features that the team are seeking out. Watch this space for more news of their discoveries.