Jib Tunnel

Jib Tunnel, also known as Lateral Passage is one of the entrances into the Gaping Gill cave system in North Yorkshire, located behind a large boulder in the north bank of Fell Beck adjacent to Gaping Gill Main Shaft. Although short, it leads to Lateral Shaft, a direct descent into Gaping Gill Main Chamber which is a popular caving route, and has had considerable significance in the history of the exploration of Gaping Gill. It lies within the designated Ingleborough Site of Special Scientific Interest.

Cave data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).