C20 spoil tip of Tirherbert Colliery (nprn 507791), originally a conical mound but now with a distinctive U-shape, as if part of the tip has been excavated. Approximately 30x30m and 20m high. Overlies earlier, lower spoil mounds on the E side.
Recorded as part of Uplands Initiative Survey. R Hayman, H&H, 22/10/2009.