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<title>258: Underground description</title>
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<table id="cavepage">
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<tr><th id="kat_no">258 - a b</th><th id="name">Tunnockschacht</th><th id="status">2 ??</th></tr>
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</table>
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<h2>How to find it</h2>
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<p>From the stone bridge, follow the cairns towards 204e entrance. Upon
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reaching the final gully, where the path turns up to the right towards
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that entrance, continue straight across and then work to the right,
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traversing around
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the rear lip of a hole. This leads to the bottom of a loose climb, which
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is ascended to reach another level. A prominent Christmas tree style fir
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marks the point where another climb is made to the next level up. It is
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then necessary to ascend to the next level above this, either by a short
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traverse and then a narrow climb between two blocks, or by heading right
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and then heading back up to the left. Having done this, a short ascent
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on small loose stones brings one to the uppermost level, marked by a
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prominent cairn (visible from the stone bridge).
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</p>
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<p>Follow the cairns around to the left, descending slightly at first and
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then maintaining the same level, to eventually reach a cairned point
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overlooking a large broken gully running from right to left. Descend
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into the gully (passing the shaft of 2004-18) and cross to the other side
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where an obvious level ascends upwards and to the right. Having reached
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the top, follow the cairns to the right to arrive quickly at an area with
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a hole to each side. The shakehole to the left, containing a cairn some
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two feet high, contains the A entrance; the B entrance is the other hole.
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</p>
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<h2>Entrance shaft</h2>
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<p><b>Warning:</b> There are a fair number of loose rocks on the entrance
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pitch, particularly in the top section. Rocks that have been dislodged
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could fall almost all the way down the shaft.
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It is advisable for one person to
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descend at a time and for the others to cower in the places marked below, or
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wait at the very bottom by the ice stals.
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</p>
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<p>The entrance, of moderate proportions, gives onto a
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steeply-sloping shaft that descends for a total of 70m depth. The
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shaft is imposing, and the view up from mid-descent is impressive.
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A thread in
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the bottom of the shakehole is succeeded by a bolt on the left wall under
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the dripline, enabling a descent for several metres to a small ledge.
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Working around to the right here gains a rebelay, succeeded by another under
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a small nose of rock just where the shaft becomes vertical.
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</p>
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<p>The landing after the rebelay is on a large ledge, partially occupied by
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a large area of snow. There is a bolt here to anchor the rope, and above
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is visible the shaft of the B entrance.
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Upslope leads to an alcove, where it is possible
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to shelter whilst people are on the upper part of the pitch. The rear of
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this alcove opens onto the top of a pitch that appears to be of quite
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some depth [QM B]. Downslope from the landing a traverse is followed on
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the left wall; a bolt low on the wall just before the end provides the
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belay for a scruffy descent of only two metres to another rebelay on a flat
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wall. From here, the descent continues either on top of or alongside a
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large snow plug to a rebelay on the left wall. After this, one continues
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over a section of loose boulders and then drops in an awkward crack to
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a crows' nest known as the Col, where there is a further rebelay. (The
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rigging just above the Col is sub-optimal, and could do with further
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work.) Care should be taken at the Col not to bang one's head on the
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boulders above, as their undersides look loose. The Col provides a further
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place where shelter can be taken from falling debris.</p>
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<p>Continuing the descent in the main shaft from the Col gains another
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snow plug and the base of the rift holding the Col. It is possible that
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this rift could lead to further passage [QM B], either accessed from this
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point or by descending the pitch on the other side at the Col.
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Abseiling over the snow plug towards the right wall, a high bolt provides
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the belay for the final section of the pitch. The rope rubs on a boulder
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here and a deviation should be installed. The final section drops
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near-vertical for a short distance and then becomes steeply-sloping
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over snow. Gradually, the snow flattens out (passing a possible way on
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to the side of the snow plug on the left wall [QM C]),
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and the bottom is reached
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at a pool of ice. There is an ice stal on the right and another in an
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alcove to the left. The one in the alcove could be ascended with ice and/or
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climbing equipment to reach a passage [QM C].
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On the existing rigging, reaching this point requires
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approximately 100 metres of rope, a long sling, and nine hangers.</p>
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<h2>First horizontal level</h2>
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<p>The main way on from the ice pool is a hole at floor level that leads
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into a chamber. Another small hole to the right gives access to
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<b>Bauernkrapfen Passage</b>, a well-formed crawl debouching into a large rift
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chamber, <b>Three Fried Mice</b>. Following the chamber around to the left
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leads to a choke at the bottom of a slope, although before this it is possible
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to climb up the wall and through a hole under boulders to gain a higher level,
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with a view over the chamber before Bauernkrapfen Passage but no other ways
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on.</p>
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<p>Following the rift around to the right from the end of
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Bauernkrapfen Passage, passing some faulted phreatic tubes in the left wall,
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leads to an opening in the right wall. This sucks strongly and
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continues as a phreatic passage past a delicate traverse over a hole [QM C]
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to eventually arrive at a further hole in the floor. This will require
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rigging to traverse or descend.</p>
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<p>Beyond the fine traverse of Caramel Catharsis a large sandy passage slopes
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gently down to a junction. Ahead is a stoop leading though into the Littoral North.
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</p>
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<h2>Littoral North</h2>
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<p>Beyond the stoop is a 3m climb down in a rift below an aven. At the bottom is wide stony passage with abvious ways off to West and North.</p>
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<p>West, there is a stepped pitch down to the left [2007-258-01-A], and a 3m climb up to the right of this (rope needed) leads into a strongly draughting passage which gaoes about 50m to the edge of a large round pitch[2007-258-02-A]. A continuation [2007-258-03-B] can be seen 15m away across the far side.</p>
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<p>North a 2m climb up leads to an unusual critical-angle pile of water-warn rocks <strong>Y KeyKey Beach</strong>. The narrowing at the top of this pile (it gets close to the roof) has a stonking gale coming through it. Just beyond this where the passage widens to 8m, behind the large rock on the left is the hidden entrance to <strong>Rhubarb Crumbly</strong>, the key to the <strong>Max Pleasure</strong> area.</p>
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<p>Ahead the comfortable passage only goes for about 20m before reaching the edge of a huge shaft undercutting the RH wall[2007-258-04-A]. An airy traverse to the left of this reaches another hole on the left down, apparently into the same pitch[2007-258-05-A]. Immediately ahead is another large hole [2007-258-06-A]. There appears to be a continuation across the other side - a long bolted traverse away[2007-258-07-C].</p>
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<h3>Rhubarb Crumbly</h3>
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<p>Climbing down behind a large rock in Littoral North gives access to nice walking passage floored with dark dirt.
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<h2>Dubious Pleasure</h2>
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<h2>Max Pleasure</h2>
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<p>High chamber merges back into walking passage. 10m along a soil slope comes in from the right wall, choked to the left, and a low crawl [2007-258-08-B] to the right. The passage slopes gently down until it meets a larger one with the way on going gently up-dip to the right. There is a large boulder at the junction. The continuation of the larger passage on the left is choked with soil.</p>
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<p>Past a pillar the passage opens up into a high wide chamber with a deep canyon in the floor, largely covered by boulders. At the start of the chamber a rapidly-lowering passage goes back right for 8m before being choked with sand. At the far end of the chamber you step over the canyon [2007-258-09-A] and have to clamber over some very nice flowstone to proceed. The obvious way on is walking passage but in fact the passage goes at two levels here - you can also climb down below the flowstoned chockstone and follow the canyon upstream to get to the same chamber.</p>
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<p>Following the obvious higher level brings you into another chamber with a deep hole in the floor [2007-258-10-A] , mostly blocked by a large jammed boulder. Traversing around the left hand side reaches a 3m climb down to the far side of the hole. This is <strong>Petticoat Junction</strong> where there is a choice of left towards <strong>Let's get Nacked</strong> or ahead across rocks and uphill to <strong>Hedonism Highway</strong>.</p>
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<h2>Hedonism Highway</h2>
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Very high rocky passage uphill with monster draft (considering passage size) blowing out. This whole passage is formed on a bedding plane sloping at about 25 degrees from horizontal, so everywhere is walkable but quite steeply sloping. A tricky c2 over a block reaches a sandy hading chamber. Going across to the left reaches a very wide, bedding-aligned area with a choice of routes upwards either side of a pillar. [2007-258-11-A] is a passage off to the left. At the top of the wide bit the passage reverts to a phreas with a deep canyon which is largely inaccessibly-narrow. It is at least 8m deep and there are a couple of points one could get in [2007-258-12-C].</p>
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<p>Climbing over a large boulder the passage widens due to a junction. The passage goes off left upwards [2007-258-13-A], as does the canyon, and another goes off left downwards [2007-258-14-A].</p>
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<h2>Crossword Passage</h2>
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<h2>Let's get Naked</h2>
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<li><a href="258.html">258 index page</a></li>
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