Tresviso 2022 Report published
The expedition report now available to download.
More videos
There are some fantastic caving videos out there on the web, excellent resolution, interesting, great music, commentary and annotations… the following videos are not them.
Tresviso 2021
Despite best efforts the 2021 expedition did take place with continued exploration in the Cueva del Nacimiento cave in the Urdon Gorge (Tresviso, Cantabria). Expeditions in the previous years have been slowly extending the cave up through the mountain range, with the intention of trying to connect the cave with the known deeper pot holes…
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2019 Summary
A distinct lack of enthusiasm from people for writing up the expedition….. A post trip summary follows: The Tresviso expedition returned back to the UK last week and the following is a brief summary: Cueva del Nacimiento – Parting Friends In the entrance series of Nacimiento is an area called the Road to Wigan Pier…
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Through-trip!
Cueva de la Marniosa In the early 1970’s a group of students from Lancaster University Speleological Society (LUSS) touring Northern Spain heard about some caves near Tresviso, Eastern Picos de Europa. In 1975, their first year visiting caves of Tresviso, they explored upstream, into the Sobra valley and found a crack in the side of…
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T20A Silvestre Pot exploration log
Extract from various sources on exploration of Silvestre Pot (Alistair Gott) Part 1 Sobra valley is part of the stream catchment for cueva del marniosa, very little was known about the stream sinks until 5 days ago. Cueva del marniosa is one of the two well known stream caves in the Tresviso region. Imo furlong,…
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Silvestre Pot (Sobra Valley)
An early start was arranged, which would normally mean an early night. 2am was the actual bedtime for most on the trip. The agreed start time of 9am was fairly well stuck to and saw us at the cave by 9.45am. Upon arrival at the track, AG decided to put his caving kit on and…
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Practice Pot (IM2) Cueva Donga (AS 1) & de Silvestre (KJ1)
By Stu Coxon We left the hostel with the intention and kit to look at the tight section in Cueva Donga and hopefully enlarge it. Our secondary objective was to have a look at the pitch in the entrance of what is now known as Practice Pot. Alistair and Dreads went over to Practice Pot…
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Cueva del Marniosa – Upstream avens (Part 2)
by Dan Workman The planned trip as of Monday eve was Sam and I to continue the climbing whilst Dave and Derek resurveyed the upstream passage behind us. However, in the morning Derek was not feeling up for caving and we were reduced to a group of three. We set off slightly later than planned…
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Cueva del Marniosa – Upstream Avens (Part 1)
by Sam Deeley Having been driven down to the entrance by Joe, we entered the cave at 1300. Bob and Dave led the way to the streamway, after which we split into two parties. Following the directions of Dave, specifically details of the climb over a calcite flow, we reached the first boulder choke. Quickly,…
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