Tresviso Caves Project

Tresviso Caves Project Gazetter

O-25: Fuente De Estra Guenas

East, North:370010, 4794945 (nearby)
Coordinate Quality:GPS
Long, Lat:-4.6025092527231, 43.296083713156 (map)
Elevation (m):110
Length (m):0
Depth (m):0
Active Lead:
Survey Available:


The resurgence opens on the river right of the Rio deva, downstream of the La Hermida. a road bridge close by partially hides the entrance to an imposing cave




The first sump is thirty meters from the entrance. Its outflow is narrow and small between obvious blocks from a collapse of the ceiling.
The river flows under the blocks, then into a passage of large dimensions (5m wide for 10m height). The passage ends in a second sump which is 70m long, to -15m of depth.

the divers explored three huge inlets, but do not find a continuation.
Due to its size and location, this network is promising and deserves new explorations


Spelunca 19, supp. (1985) S.S. Suisse de Geneve and GS Doubs in 1978


No images available