T591: Torca de la Riega Cericiega(La Cuidad del Drenaje, T24, Torca 24, Town Drain, 17) |
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Approach | |
| From the head of the Sobra Valley (park in layby) head west of the col and then approx. 350m in a southerly direction to obvious depression. Sink is on left following the obvious line of the valley, surrounded by trees. | |
Entrance | |
| Large open depression surrounded by trees. | |
Description | |
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A large open depression surrounded by trees. The shake hole is split by numerous rock bridges with two obvious descents, right as you look south is a 50m pitch, left is a 20-30m scramble, aided with a hand line to floor of the open shake hole. Continuing down leads to a 25m pitch (split into 10m, 10m and 5m sections) to the floor of the main chamber (15m x 25m x 25m).
From the main chamber a number of passages lead off in various directions. Heading east an easy scramble down leads to a smaller anti-chamber that must take the majority of water in wet conditions. At the north end of this chamber is small climb down into a water worn passage which after 5m drops into a small mud and boulder choked chamber. A small u-bend squeeze it the current limit of exploration. A 4m climb above here leads through a small passage. Heading west from the main chamber is a 10m pitch that can be free climbed through a small opening on the left. This leads directly into another obvious water sink with mud and flood debris evident. A small crawl to the left leads to a mud chamber with no apparent way on. A small climb above here leads through a small passage to 10-20m of old stream passage. This leads out into a larger fossil rift and the head of a 17m pitch. From the base of the pitch a short climb leads to the head of a 20m immediately on to a short fossil ramp and a balcony over a broad smooth sided circular shaft. From the flat base a short phreatic stream way quickly leads to the head of a 30m pitch. The far side of the bottom of this larger shaft leads immediately on to a soft fossil ramp and a balcony over a broad chamber. The base of the chamber is dominated by a mound of mud and debris washed in from above. Circling either side of the mound leads down though to a mud filled chamber cut though by floodwater. This leads to a low cobbled crawl at the far left hand side of the chamber which can be followed for 20m to a small chamber. Above the crawl to the right can be found a small 3m shaft with a cobbled floor (this was not explored due to lack of rope). The far right hand side of the chamber leads to a wide inclined rift which can be climbed for 5-10m before ending in an aven (not climbed due to lack of equipment). A single set of old rusty spits were in evidence on the pitches. | |
Reference | |
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Colectivo Asturiano De Espele'logos CADE. (1983) Agrupacion De Espeleologia Canfranc ADEC (1988) Tresviso Caves Project 2015 Picos de Europa, Ascensiones a las cumpres principales y 20 traversas selectas, by Miguel Angel Adrados, 1997, | |
Images | |
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No images available | |