Old stone mining building called an wheelhouse or engine house. Featured weathered stone wall and full interior scan.

Wheal Uny is located on the eastern slopes of Carn Brea on the northern edge of the Great Flat Lode near Redruth.

These two engine houses worked the Hind’s Shaft. The engine house on the right contained the mine’s 70 inch pumping engine, while the other contained the whim engine.