"?ez Rob"*- JSPDT/ICCC Slovenia Expedition 2017
First year undergraduate Kenneth Tan prepares to descend through a hole in 'The Eyrie' back out into the sunshine, with a 1400 m drop into the valley below. Visible in the centre of this image is the ar?te from which we abseil to the Primadona entrance.
Migovec is a mountain in the Julian Alps in Slovenia, overlooking the town of Tolmin in the broad Soca valley. Since 1974, local cavers from the caving section (Jamarska Sekcija - JS) of the Tolmin alpine club (Planinskega dru?tva Tolmin - PDT) have been exploring the Migovec system. In 1994, a small group of cavers from Imperial College Caving Club (ICCC) drove across a recently redrawn Europe in search of deep alpine cave exploration, and joined up with the JSPDT to form a partnership that has grown ever stronger over time.
Since then, ICCC has returned to Migovec most summers. We have pushed new cave passages deeper and further underneath our Hollow Mountain. Notable recent discoveries include the deep connection Vrtnarija into the main Sistem Migovec cave system in 2012 to form the longest cave system in Slovenia, and the shallow connection of Primadona (the third deep system in the mountain) in 2015, bringing the total length of passage to 37.2 km, with the deepest points at -975 m. Perhaps the most interesting aspect of the cave development is how densely riddled the approximate cubic kilometre of limestone we explore is.
Click for an extended elevation of the system - it's too big to embed in this post!
The ICCC side of the expedition is student led and student run, with a dozen or so students supported by alumni each year. We start with a long drive across Europe in a battered minibus to Tolmin (200 m above sea level) and then up to the hamlet of Tolminski Ravne (900 m) before carrying all of the equipment and food necessary for four weeks of expedition up to the top of Migovec (1800 m). We get special permission, organised by the local JSPDT club, to camp in the (Triglav) national park for the duration of our cave exploration. The camping is entirely wild. We collect rainwater and (when the rains fail) melt snow to drink. The base camp is our bivi in a small shakehole. From 2009-2015 we were deep-camping in Vrtnarija to further the exploration, typically spending 3-5 days underground at a time.
Last summer we moved our focus to the Primadona system. As the depths had not been re-reached since the originally exploration in 2000 and 2001, considerable cost and effort went into safely rerigging the main trunk routes, including the 150 m abseil over the cliff edge to the cave entrance! We discovered a parallel shaft series leading into a series of huge chambers, formed along a fault line. This shaft series also reconnected into the deep levels. We used over 800 m of new rope, and near the end of the expedition resort to scavenging more from unvisited parts of the system. The cave has been derigged and the ropes left coiled.
This year we will return to Primadona, and rebolt and rerig the old deep shaft series, looking to reach the bottom, where the shaft series was apparently left ongoing in 2001. Primadona also has considerable horizontal development between -200m and -300m. There are three distinct large horizontal galleries branch out of the main shaft system, heading both north and south into (as yet) blank mountain, each sporting several undescended pitches along the way, and many more question marks on the survey. We suspect these may also develop into deep shafts series, and so we again expect to use a large amount of rope. As a group of students we carefully control costs so that every home student who wants to come can join us. Any rope that we received through sponsorship would be eagerly taken to enable us to continue exploring this incredible cave system. We have been active on Twitter since 2008 (http://twitter.com/iccc ) with live expedition updates to keep everyone up to date on our progress, and we?re happy to post on UKcaving with updates and photos, as well as longer report when we get back to the UK and have had chance to have a shower.
More details of our past expeditions can be found on our website, and the expeditions from 1974-2006 have been compiled into a book, "The Hollow Mountain", the first volume of many more to come.
*Roughly: "Over the Edge", a reference to the long exposed abseil over the cliff edge to reach the cave entrance.
First year undergraduate Kenneth Tan prepares to descend through a hole in 'The Eyrie' back out into the sunshine, with a 1400 m drop into the valley below. Visible in the centre of this image is the ar?te from which we abseil to the Primadona entrance.
Migovec is a mountain in the Julian Alps in Slovenia, overlooking the town of Tolmin in the broad Soca valley. Since 1974, local cavers from the caving section (Jamarska Sekcija - JS) of the Tolmin alpine club (Planinskega dru?tva Tolmin - PDT) have been exploring the Migovec system. In 1994, a small group of cavers from Imperial College Caving Club (ICCC) drove across a recently redrawn Europe in search of deep alpine cave exploration, and joined up with the JSPDT to form a partnership that has grown ever stronger over time.
Since then, ICCC has returned to Migovec most summers. We have pushed new cave passages deeper and further underneath our Hollow Mountain. Notable recent discoveries include the deep connection Vrtnarija into the main Sistem Migovec cave system in 2012 to form the longest cave system in Slovenia, and the shallow connection of Primadona (the third deep system in the mountain) in 2015, bringing the total length of passage to 37.2 km, with the deepest points at -975 m. Perhaps the most interesting aspect of the cave development is how densely riddled the approximate cubic kilometre of limestone we explore is.
Click for an extended elevation of the system - it's too big to embed in this post!
The ICCC side of the expedition is student led and student run, with a dozen or so students supported by alumni each year. We start with a long drive across Europe in a battered minibus to Tolmin (200 m above sea level) and then up to the hamlet of Tolminski Ravne (900 m) before carrying all of the equipment and food necessary for four weeks of expedition up to the top of Migovec (1800 m). We get special permission, organised by the local JSPDT club, to camp in the (Triglav) national park for the duration of our cave exploration. The camping is entirely wild. We collect rainwater and (when the rains fail) melt snow to drink. The base camp is our bivi in a small shakehole. From 2009-2015 we were deep-camping in Vrtnarija to further the exploration, typically spending 3-5 days underground at a time.
Last summer we moved our focus to the Primadona system. As the depths had not been re-reached since the originally exploration in 2000 and 2001, considerable cost and effort went into safely rerigging the main trunk routes, including the 150 m abseil over the cliff edge to the cave entrance! We discovered a parallel shaft series leading into a series of huge chambers, formed along a fault line. This shaft series also reconnected into the deep levels. We used over 800 m of new rope, and near the end of the expedition resort to scavenging more from unvisited parts of the system. The cave has been derigged and the ropes left coiled.
This year we will return to Primadona, and rebolt and rerig the old deep shaft series, looking to reach the bottom, where the shaft series was apparently left ongoing in 2001. Primadona also has considerable horizontal development between -200m and -300m. There are three distinct large horizontal galleries branch out of the main shaft system, heading both north and south into (as yet) blank mountain, each sporting several undescended pitches along the way, and many more question marks on the survey. We suspect these may also develop into deep shafts series, and so we again expect to use a large amount of rope. As a group of students we carefully control costs so that every home student who wants to come can join us. Any rope that we received through sponsorship would be eagerly taken to enable us to continue exploring this incredible cave system. We have been active on Twitter since 2008 (http://twitter.com/iccc ) with live expedition updates to keep everyone up to date on our progress, and we?re happy to post on UKcaving with updates and photos, as well as longer report when we get back to the UK and have had chance to have a shower.
More details of our past expeditions can be found on our website, and the expeditions from 1974-2006 have been compiled into a book, "The Hollow Mountain", the first volume of many more to come.
*Roughly: "Over the Edge", a reference to the long exposed abseil over the cliff edge to reach the cave entrance.