It is a fine "vertical" cave which is dry, deep, and mostly in big passage formed within a mineral vein.
Entering via a 17.5-metre (57 ft) mine shaft of small dimensions, which leads down past a mined level, the explorer emerges at the top of a slope in a natural vein cavity.
Two further pitches lead down to a col 70 metres (230 ft) below the entrance, where there are two ways on.
A passage at the far end of West Chamber links through to the bottom of Maskhill Mine.
The fourth pitch, which is a climb in the West Antechamber wall, reaches a crawl heading north away from the vein into the New Oxlow Series and the long, very tight and wet connection to Giant's Hole.