3569: Twin Entrance Cave
Hornedo 30T 448975 4801079 (Datum: ETRS89. Accuracy code: G) Altitude 93m
Length 45m Depth 10m
Area position

Updated 20th February, 12th May 2018

Original description: (15m length) The right hand hole is a walk-in entrance over large sandstone boulders to a climb up to a hands and knees crawl to a 6m undescended drop. The other hole, probably connected, is narrow, vertical and sand-filled.

The February 2018 explorers chiselled away a sandstone block leading to two parallel passages with good formations. The left becomes too narrow while the right becomes stops completely in heavy calcite. The pit at the end of the right passage has a fissure in the floor of about 4m. Dropped stones suggest that there is space below. Two metres from the entrance, a shuffle over boulders at roof height leads down to a passage previously described by the finders. The "6m undescended drop" is thought to be much deeper.
In April 2018, the pitch to the right of the entrance was descended 7.7m with a very tight continuation for at least 5m left unexplored.

Reference: anon., 2011d (summer logbook); anon., 2018a (January, February logbook); anon., 2018b (Easter logbook)
Entrance pictures: 2011
Underground pictures : 2011
Video :
Detailed Survey : 2011 sketch : 2018 sketch
Line Survey :
On area survey :
Survex file :