0047: Rellanos, Sima de los
S Vega 30T 450315 4795263 (Datum: ETRS89. Accuracy code: G) Altitude 300m (lower lip of main shaft) Middle? entrance by tree ETRS89: 30T 450286 4795232 Altitude 317m
Length 120m Depth 120m
Area position

Updated 19th February 1999; 20th January 2002; 8th November 2003; 21st September 2018

Three entrances to the west of the Reñada entrance passages: highest one is a 9m pitch which can be reached by entering the middle hole and climbing down 3m. A steep slope leads down to a window into the main pitch which descends about 30m to a slope of unstable boulders and then a drop of 60m to a rubble floor in a large chamber. The third and lowest entrance leads directly to the unstable slope via a pitch of about 40m.

The shaft appears to cut through all the cavernous beds down to valley bottom level without intersecting any horizontal development. Only English descent by Tobo and Dennis.

References: Ullastre-Martorell J, 1975 (survey); Corrin J S and Smith P, 1981; anon., 1981 (logbook); García José León, 1997 (survey); anon, 2001d (Christmas logbook); León García José, 2010 (survey); anon., 2018c (summer logbook)
Entrance picture : middle? : lower (2001 & 2018)
Underground picture(s): inside middle(?) entrance
Detailed Survey : from 1967: low res  high res
Line Survey :
On area survey :
Survex file :