0084: Cosas, Cueva las
La Secada 30T 452857 4797232 (Datum: ETRS89. Accuracy code: G) Altitude 195m
Length 180m Depth 24m
Area position

Updated 6th May 2000; 8th November 2003; 14th October, 29th November 2016; 9th September, 6th October 2017; 12th May, 6th September 2019

   After attempts to find the cave (at a wrong grid reference) in August 2016, the entrance was finally re-located and GPS'd the following November.

   A small entrance under a scar leads directly onto a steeply descending calcite slope with columns. The route down ends on rubble then a flat mud floor with drip pits. To the right (south) is an impressive, isolated 4.5m high column; the wall behind and some stal have been plastered with carbide(?) graffiti. Around to the east, is a toppled stumpy column which has rolled and has later calcite growing on and around it.

   The "60m diameter" chamber, according to the entry in reference L75, may have a way on which has collapsed. Further investigations in 2000 found no such prospects, although there are small routes which may repay closer inspection. A thorough (re)inspection and resurvey was carried out in August 2017 - 2019. At this time the length of the cave was calculated as 180m - the sum of the lengths of the chamber's major and minor axes.

   Site 4599 may have been an entrance further northeast at one time as daylight was spotted (4/8/17) to the north of the main entrance.

   Members of the Matienzo Karst Entomology Project on a visit at Easter 2019 found no sign of bug life and saw only one lesser horseshoe bat.

The site is well worth a photography session!

References: Fernández Gutiérrez et al, 1966 (survey); anon., 1975b (logbook); Kendal Caving Club and Manchester University Speleological Society, 1975 (survey); Corrin J S and Smith P, 1981; Neill A et al, 1989; anon., 2000b (Easter logbook); anon., 2016c (summer logbook); anon., 2016d (autumn logbook); anon., 2017c (summer logbook); anon., 2019b (Easter logbook); anon., 2019d (summer logbook)
Entrance picture : entranceview from entrance : entrance, November 2016 : entrance August 2017
Underground picture(s): formations 1  2  3  4  5  6 : November 2016 : August 2017 (ND) : August 2017 (CM) : April 2019 : January 2020 : summer 2021
Video: Using 360o camera (YouTube, November 2016)
Detailed Survey :
1964 known cave low res high res
1975 known cave low res high res
2017 - 2019 known cave   in hand

Line Survey :
On area survey :
Survex file : from August 2019