Drainage adit for Lanivet Consols. Has not been confirmed to still exist in 2024.

The drainage adit commences in the valley 250 yds. E. of Tregullan village and is driven for 250 fms. S. by W. with two adit shafts near the mouth and four in the last 125 fms. At 110 fms. from the entrance the adit passes through North Lode, coursing E. 50 ° S.; the only development on this is a drive 15 fms. W. and 40 fms . E. of the crosscut; at 225 fms. it cuts Tregullan Lode.