A small square building, measuring 2.5m east/west by 1.5m north-south, constructed from coursed rubble and reaching a maximum height of 1m. The northernmost wall is built directly onto the outcropping rock and the doorway, 0.5m wide, is located on the western wall. The building's function is not apparent. Noted during an upland survey conducted by Archaeophysica during 2005-6