Wheel pit at Holmslinn Mine.

Holmslinn Mine, Allendale. Shaft on to Blackett Level with remains of tower base surviving. Also, bed for hydraulic engine, large wheelpit and a terrace of housing, office, lodging shop. Active 1856 to late 19th century. The engine bed and wheelpit are high quality, the remaining features have group value. (1)

Scheduled. (2)

Waterwheel Pit at Holmslinn Shaft on south bank of River East Allen. Grade II listed building. (3)

The surface remains of the Holmes Linn Lead Mine include a waterwheel building, shaft head structure and adit portal, hydraulic engine house and mine shop, as well as the remains of other structures. The Holmes Linn site was developed from the mid-1850s as part of the Blackett Level scheme in draining the area, as well as experimental rock drilling in the 1860s at the base of the shaft. The buildings all belong to one phase of mining (between 1855 and around 1903). No earlier input to the site or any later development appears to have taken place. There remains some structural evidence of how state-of-the-art machinery of the famed Armstrong works was operated.
The significant remains of this site extend beyond the scheduled area and include riverside structures of the mine, and further protection should be carried forward in the listing of the mine shop. Further conservation and consolidation of the buildings and structures of the site are needed. (4)

Listed. (5a)