3954: caves
Barrio la Mina 30T 444510 4800203 (Datum: ETRS89. Accuracy code: A) Altitude 225m
Length 20m
Area position

Updated 6th May 2016; 8th January 2018

The entrances lie in a cliff face (sandstone outcrop?) in a large depression. Length is a guess.
At the western hole, by the base of an obvious sandstone outcrop, entry is gained over rubbish. Approximately 3m of large passage in sandstone leads to an open section back to the surface with a larger chamber in front - again all in sandstone. There are numerous animal skulls on the floor here. A low way off under the north wall trends east ending under roof collapse from the chamber above. Infill obscures exactly what is happening here. It gives the impression of a large and wide filled passage, but there is no limestone seen.
A crawl east from the chamber leads past another smaller window back to the surface into a lower section over sandy mud. The passage carries water in wet weather which has brought in broken glass. It ends at a narrow gap in mud and boulder. This is the most easterly point of the feature.
Back in the chamber, a way down between sandstone blocks was dug. From the logbook: "We had noted that the roof of the chamber had some cracks but the area around the choke seemed OK. However, while reducing the size of one of the blocks in the choke the good bit of roof gave a creak and dropped slightly. Time to go."
The cave was draughting out and is probably connected with the earlier dig as both are trending towards one another and at a similar level with opposite draughts.
"A live rat was seen in the cave. Any volunteers for this project?"

Reference: anon., 2014b (Easter logbook); anon., 2016b (Easter logbook)
Entrance picture : Easter 2014 & 2016
Underground pictures : 2014
Video :
Detailed survey :
Line Survey :
On area survey :
Survex file :

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