Hillocks Mine: Adit Entrance
No prior permission required for the Adit Entrance. Park in grassy area at junction of green lanes (Cross Lane & Blackwell Lane), taking care not to cause obstruction. Barn belongs to National Trust and is secured against entry to prevent vandalism. For the Adit Entrance go SE along Blackwell Lane to stile into field on south side.
CO2 build-up can occur in the lower parts of the mine.