0715: shaft
La Secada 30T 451177 4797582 (Datum: ETRS89. Accuracy code: G) Altitude 270m
Length 291m Depth 110m
Area position : Site entrance in context : Logbook search
Updated 13 February 1998; 16th October 2001; 7th May 2002; 18th October
2003; 2nd May 2004; 1st February, 18th May 2006
A definitive account should be written for this
hole.
Approached from the first hairpin, site 415 is approx.
90m away on 230°.
An excavated entrance which leads to a fine Yorkshire pot with good hangs
for SRT. The first 11m drop is free climbable by jamming. This leads to a
tight slot which opens out to the second 8.4m pitch. This ends on a pinnacle
and a climb down through a rift to the head of the third, 7m pitch. The base
of this is a level of some horizontal development at 245m altitude.
At Easter 2006 "rigged down 3 pitches and swung into bedding crawl. Rope
for traverse was still hanging around so went across the traverse
and up the rift beyond. Checked out the two inlets". The smaller
one of these was pushed and
dug until more rocks blocked the way.
Pitches of 13m, 8,4m and 18m follow in quick succession to a 5m free climb down to pools and an impenetrable slot.
Avens at the base of the 3rd pitch have not been climbed. A passage on the
left at the 3rd pitch base meanders updip to a calcited choke. The down dip
continuation across a rock bridge and is a body sized hole.
The "same pitch?" shown on the
survey was investigated in 2003
and found to true. At Easter 2004, passages "found last year off the traverse"
and 20m of new passage at the bottom were surveyed but not drawn up.
The cave is formed on one joint (130° - 310°) with an inlet entering down dip (15°) and has no connection with site 415.
Reference: anon., 1993b (logbook); material in file; Corrin J, 1994a; Corrin Juan, 1995b; anon., 1997b (logbook); anon., 2000b (Easter logbook); anon., 2001c (Summer logbook); anon., 2003c (summer logbook); anon., 2004b (Easter logbook); Corrin Juan, 2005; anon., 2006b (Easter logbook)
Entrance picture : distant close up
Underground picture(s):
Detailed Survey : 1:500 (year 1993) 1:500 (plan drawn 2002) 1:500 (elevation drawn 2002)
small extension sketch 2006
Line Survey :
On area survey :
Survex file : yes (Amended magnetic declination December 2013 to align with Eur79 grid.)