1162 Orillónzuco
Ozana VN54479475 Alt. 276m Length 400m

The cave has three entrances and is normally entered via this, the middle one, as it requires no tackle. A jungle bash is often required to get down into the steep-sided stream bed which enters the cave. The passage degenerates into a stooping rift which soon meets a streamway that runs from west to east. Upstream leads to the Malbujero (1161) entrance while downstream, the passage is high with a couple of cascades until a large passage is met on the left. This leads to the base of the pitch from the third shaft entrance, Orillón (023). The remaining 250m of the cave is mainly walking. At the end the stream filters away through the floor, with a small length of high level passage above. This point is near to the end of Sima de Cagiga Redonda (531).

J. Corrin found a stone axe about halfway along the Orillón streamway in 1996. The axe is apparently of Galician origin and was handed into the museum.

Ortiz (AM) lists three miriapods, collected in 1966 (Lithobius insignis Meinert, Lithobius derouetae Demange and Lithobius drescoi Demange), while Notenboom (AX) found the following fauna in 1984: Pseudoniphargus, Proasellus, Prosobranchia/ Hydrobioidea, Bivalvia/Sphaeriidae, Insecta and Oligochaeta.

References: Fernández Gutiérrez et al, 1966 (survey and photo); anon., 1974b (logbook); anon., 1974a; Cox G, 1973; Kendal Caving Club and Manchester University Speleological Society, 1975 (survey); Manchester University Speleological Society, 1982 (survey); Corrin J S and Smith P, 1981; Ortiz E, 1968; Notenboom J and Meijers I, 1985; anon., 1996a (Easter logbook)
Entrance picture :
Underground picture(s):
Detailed Survey :
Line Survey :
On area survey :
Survex file :