Tresviso Caves Project

Tresviso Caves Project Gazetter
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T15: La Cueva Mueria

(Moria)
Area:Tresviso
East, North:362410, 4790133 (nearby)
Coordinate Quality:GPS
Long, Lat:-4.6949596664773, 43.2514209048 (map)
Elevation (m):870
Length (m):189
Depth (m):-10
System:
Active Lead:
Survey Available:

Approach
Approach from the Tresviso – Sotres road, parking at the obvious layby at the top of the Sobra Valley. Follow the track down into the valley and cross the Rio Sobra just past the obvious cabanas. Take the track up the south side of the valley until level with the wall downstream of the Sobra dam (visible on north side of the valley).

Climb the hill on the south side of the valley on the same bearing as the wall, heading up towards the GPS location coordinates. The entrance is at the head of a gulley, follow the gulley uphill past one or two drystone walls to reach the cave mouth.

Entrance
There is a large entrance which is crossed by a wall and surrounded by nettles.

Description
winding phreatic tunnel 7m wide and 4m high forks after 35m. Left lowers to a bedding plane choked with calcite and no way on. Right continues down a passage which bends to the right and leads to a 1m climb down.

There are three ways on. At the base of the climb, straight on leads to an alcove which has been filled at the end but connects to the left hand from the bottom of the 1m climb. Turning right leads to a 10m blind pitch/bold free climb with no way on.

The left route leads past a drystone wall (originally built for cheese storage) to a right-hand turn and a well decorated chamber. A rubble filled alcove leads back to the route straight on from the 1m climb down.

The main passage continues descending to a freeclimb and a crawl at the base, the floor here feels cool (digging here would be a long-term dig of British proportions but may yield longer term results). There are two avens in the roof here, but they have been visually connected to the passage above.

Back in the well decorated chamber a climb up the side above the climb down leads to two pits, these are the avens seen from the bottom of the passage below. The end of the passage beyond the pits is a dead end.

Reference
L.U.S.S. (1974-1977)
T.C.P. (2012, 2021)

Images
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