Treviso 2016

Overview

The 2016 expedition was to continue with ongoing 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 in the Andara region. A number of the caves higher on the mountain (Sima 56, Sara) have previous been dye tested and the water is known to resurge in Cueva del Nacimiento.

Objectives:

Cueva del Nacimiento – Die Hard – Jurassic World. The 2015 expedition successfully reached the highest known point in the cave, the Jurassic World, with a number of leads to progress in 2016.

Cueva del Nacimiento – Teeth of Satan – Wet Aven. The 2014 expedition partly climbed a promising aven, part way up the Teeth of Satan ramps. The aven requires completion in 2016.

Cueva del Nacimiento – Grand Circle. The Grand Circle is an area of passage around the main stream way at the far end of the cave. Although explored fairly rigorously in the late 70’s this was before the advent of more powerful lights and better equipment. Given the profile of the cave, exploration in this area would be worthwhile to try and find a middle dry phreatic level above the Far Upstream Sump.

Cueto de Entre Cuetos. The 2009 trip pushed this cave down to a small stream way, this still requires exploration and the cave is in a good central location for dropping into the top of Nacimiento.

Al2. Discovered in 2005. A drafting shaft not yet bottomed. Jurassic World in Nacimiento appears to be heading directly towards this site.

Pozo Del Castillo. Reinvestigate the possibility of resuming exploration of the Castillo system, currently at -293 m.

Results

Cueva del Nacimiento – Die Hard – Jurassic World. The Sandy dig was excavated for 4 hours, but sand soon gave way to large calcite blocks. Only long term excavation would potentially pass this limit. Exploration abandoned. At the start of the Jurassic World, is the Dinosaur Aven. This aven was climbed in 2016 over 3 trips. The height reached was 55m before the aven started to close down into a small rift. Just off the Death Race 2000 chamber a small rift was followed, Joes Crack, this currently extends for 20m down a draughting rift. Although the passage heads back under the cave, it may provide a lot of dry passage if explored further. Another aven near the start of the Die Hard passage was discovered. I’m Not Into Yoga was another 60m aven and provided another 120m of cave passage.

Cueva del Nacimiento – Teeth of Satan – Wet Aven. The Wet Aven was climbed over 3 trips. The main aven is 44m high before a cross passage is reached, the cave then continues up 3 small pitches. The passage here has the characteristics of a traditional pot hole entering the cave. However, the top of the last pitch is a small calcite hole that will require hammering.

Cueva del Nacimiento – Grand Circle. The Grand Circle was revisited but no ways on could be found at the higher level. The lower level was previously explored in 2012. There appears to be no dry levels above the upstream sump and only continuing climbs in Death Race would appear to hold the route into the mountain.

Cueto de Entre Cuetos. The cave was rigged over 2 days and a number of ‘smaller’ cavers attempted to pass the terminal restriction. The final passage continues to get smaller with no way to turn around. Exploration was abandoned.

Al2. It was not possible to relocate this cave. The cave lies in a heavily wooded area of the Sierra del a Corta and was originally discovered in Winter, when the terrain was considerably different and the cave easier to find.

Pozo Del Castillo. Pozo Castillo was located and re-explored. The blockage that has prevented progress since 1987 is still in place and consists of a number of large boulders held up by a snow plug. Without significant shoring work the obstacle appears to be impassable. However, the neighbouring Pozo Natacha cave, currently finishes at a similar depth to Castillo and survey work
would seem to suggest that they (and others in the area) are feeders into a main system. Natacha was rigged to the final pitch and will be revisited in 2017 to confirm this theory and hopefully extend the cave.

Other exploration. Cueva del Marniosa was revisited. An unsurveyed inlet near the upstream end of the cave was explored for 140m. Cueva del Valledal was revisited. This was an unsurveyed cheese cave, close to Tresviso. 160m explored and surveyed.

Summary

In total nearly 1km of cave was surveyed in 2016. Exploration of Nacimiento continues to provide challenging due to the remote nature of the leads at the end of the cave. Trips to the far end require 4-5 nights of camping, in order to adequately provide time to push and explore the leads. Although there are a number of leads in the near entrance series of Nacimiento, and real gains toward the deep systems on Andara would need to be made in the Death Race – Die Hard – Jurassic World area.

Text: Phil Walker
Photos: Russell Brooks & Jason Gotel

Download: Summary Expedition Report

Close

Website Use

Terms of Use

Please read these terms of use carefully before you start to use the site. By using our site, you indicate that you accept these terms of use and that you agree to abide by them. If you do not agree to these terms of use, please refrain from using our site.

Reliance of Information & Disclaimer

The materials contained on our site are provided for general information purposes only and do not claim to be or constitute legal or other professional advice and shall not be relied upon as such.

We do not accept any responsibility for any loss which may arise from accessing or reliance on the information on this site and to the fullest extent permitted by English law, we exclude all liability for loss or damages direct or indirect arising from use of this site.

Information About Us

The Ghar Parau Foundation is a 100% voluntary-based charity that manages an investment fund to provide grant aid to assist British caving expeditions to all parts of the world. The fund focuses on those expeditions which include an element of innovative exploration or scientific study. We are also particularly keen to encourage young cavers into expedition caving (as well as sport caving) to maintain an active caving community in years to come.

The Ghar Parau Foundation, a sub-charity of the British Cave Research Association, (267828-1) works by investing the capital within the fund and distributing the interest in the form of grants to caving expeditions who apply and fit the foundations criteria.

Accessing Our Site

Access to our site is permitted on a temporary basis, and we reserve the right to withdraw or amend the service we provide on our site without notice (see below). We will not be liable if for any reason our site is unavailable at any time or for any period.

Intellectual Property Rights

You may print off copies, and may download extracts, of any page(s) from our site for your personal reference and you may draw the attention of others within your organisation to material posted on our site. Please credit The GPF as the source and any expedition whose detail or report you have downloaded. Expeditions and organisations may have additional copyright or restrictions as to using their data and reports and The GPF does not relieve you from any of those additional restrictions.

You must not modify the paper or digital copies of any materials you have printed off or downloaded in any way, and you must not use any illustrations, photographs, video or audio sequences or any graphics without further permission.

Our status (and that of any identified contributors) as the authors of material on our site must always be acknowledged. You must not use any part of the materials on our site for commercial purposes without obtaining permission from GPF.

Our Site Changes Regularly

We aim to update our site regularly, and may change the content at any time. If the need arises, we may suspend access to our site, or close it indefinitely. Any of the material on our site may be out of date at any given time, and we are under no obligation to update such material.

Our Liability

The material displayed on our site is provided without any guarantees, conditions or warranties as to its accuracy. To the extent permitted by law, we, and third parties connected to us hereby expressly exclude:


This does not affect our liability for death or personal injury arising from our negligence, nor our liability for fraudulent misrepresentation or misrepresentation as to a fundamental matter, nor any other liability which cannot be excluded or limited under applicable law.

Information About You and Your Visits To Our Site

We process information about you in accordance with our privacy policy. By using our site, you consent to such processing and you warrant that all data provided by you is accurate.

Viruses, Hacking & Other Offences

You must not misuse our site by knowingly introducing viruses, trojans, worms, logic bombs or other material which is malicious or technologically harmful. You must not attempt to gain unauthorised access to our site, the server on which our site is stored or any server, computer or database connected to our site. You must not attack our site via a denial-of-service attack or a distributed denial-of service attack.

By breaching this provision, you would commit a criminal offence under the Computer Misuse Act 1990. We will report any such breach to the relevant law enforcement authorities and we will co-operate with those authorities by disclosing your identity to them. In the event of such a breach, your right to use our site will cease immediately.

We will not be liable for any loss or damage caused by a distributed denial-of-service attack, viruses or other technologically harmful material that may infect your computer equipment, computer programs, data or other proprietary material due to your use of our site or to your downloading of any material posted on it, or on any website linked to it.

Links from Our Site

Where our site contains links to other sites and resources provided by third parties, these links are provided for your information only. We have no control over the contents of those sites or resources, and accept no responsibility for them or for any loss or damage that may arise from your use of them. When accessing a site via our website we advise you check their terms of use and privacy policies to ensure compliance and determine how they may use your information.

Jurisdiction & Applicable Law

The English courts will have non-exclusive jurisdiction over any claim arising from, or related to, a visit to our site.

These terms of use and any dispute or claim arising out of or in connection with them or their subject matter or formation (including non-contractual disputes or claims) shall be governed by and construed in accordance with the law of England and Wales.

Variations

We may revise these terms of use at any time by amending this page. You are expected to check this page from time to time to take notice of any changes we made, as they are binding on you. Some of the provisions contained in these terms of use may also be superseded by provisions or notices published elsewhere on our site.

Your Concerns

If you have any concerns about material which appears on our site, please contact the committee. Thank you for visiting our site.

Close

Privacy Policy

Your data

We do publish grants awards and expedition information and pass information to the press about the expeditions we support and grants we make. We do publish the names of expedition members but we do not pass on personal details to any organisation outside the British Cave Research Association or British Caving Association, unless requested to do under the Law of the United Kingdom.

Close

Accessibility Policy

We endeavour to make our site as accessible as possible to people of all abilities. We test our site for compatibility with a range of browsers and permit those browsers to enable any accessibility preferences the user may choose to use. However, as volunteers, we cannot accept liability for any accessibility issues any user may have, though we shall be very willing to gain feedback and address any issues we can. Please use the site feedback facilities to do so. The GPF however, work strictly with the UK English language and, whilst this site should work, we do not design this website with features for use on mobile devices such as tablets and mobile phones.