0753: Rotura, Torca de (2013 (French: SCD))
Arredondo 30T 451008 4792824 (Datum: ETRS89. Accuracy code: G) Altitude 408m
Length 80m Depth 73m
Area position

Updated 12th May 2002; 1st July 2009; 11th February 2016; 27th February, 23rd September 2018; 22nd August 2020

Simonnot G, 2016 has the position as ETRS89 0450999 4792821.

   A large shaft, rather like Rowten without the stream, labelled SCD2013.
   A 45m pitch has a ledge 20m down and lands on a rock slope. A steep boulder slope leads to a broken 15m pitch and a final 20m pitch to a sandy floored chamber where a 10cm wide fissure emits a cold draught. This is above Smelly Hat Aven in Cueva Vallina and a start has been made to open up the rift (February 2018).
   Further work was carried out in the summer 2020 when progress was made along a meander to where a p10 could be observed ahead. The site draughts upwards. (See 2020 survey below).

The information below has been roughly translated from the French, Spéléo-Club de Dijon reference, Degouve de Nuncques Patrick et Simonnot Guy, 1989 (in Sous le Plancher, no 4, 1989), repeated in Simonnot G, 2016. The French reference number for this site is SCD2013.

In the side of a small valley to the north of Arredondo, on a sloping moor, fifty meters above a hut. Easy access by road then along the track of Llaneces. At the end, taking a path along the hillside for ten minutes towards the hut of Rotura reaches the site. Explored in October 1988.

A pretty p48 is followed by shorter verticals (p20; p5) leading down to -73 in a small choked chamber. A narrow fissure emits a violent draught. This hole could be the source of Fuentes (No 2018). (Site 1756).

This chasm must be in relation with the cueva Vallina whose galleries pass just below. (Simonnot G, 2018)

References: anon., 1989 (logbook); material in file; Degouve de Nuncques Patrick et Simonnot Guy, 1989 (survey); Corrin Juan, 2009; anon., 2009b (Whit logbook); Simonnot G, 2016; anon., 2018a (January / February logbook); Simonnot G, 2018; anon., 2020c (Spring, summer logbook)
Entrance picture :
Underground picture(s):
Detailed Survey : yes (from Degouve de Nuncques Patrick et Simonnot Guy, 1989); amended survey 2020
Line Survey :
On area survey :
Survex file : yes (Amended magnetic declination December 2013 to align with Eur79 grid and coordinates altered to fit ETRS89 datum, April 2014.)

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