expoweb/plateau/200.htm

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<title>1623:200 = CUCC 1993 01</title>
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<center><table border=0 width=100%>
<tr><th align=left><font size=+2>200</font></th>
<th align=center><font size=+2>Verlorener Rucksack Schacht</font></th>
<th align=right><font size=+2>1/S +</font></th></tr>
<tr><th align=left>= CUCC 1993 01</th>
<th><font size=+2>Lost Rucksack Cave</font></th></tr>
</table></center>
<p><b>Altitude:</b> 1647m, depth 45m<br>
<p><b>Location:</b> E 35479, N (52)83052<br>
700m north of Schwarzmoossattel.
<p><b>Marking:</b>M6 stud with alloy tag "CUCC 1993 01" on flat rock NE of
shaft. This will be replaced with the correct kataster number in due course.
<p><b>Access Route:</b> From
<a href="164.htm">164</a>, avoid <a href="189.htm">189</a> (easiest 15m to
its right over a small ridge, but OK immediately on its right edge), then
go roughly NNW (a few cairns - 1996 vintage orange paint has completely
faded). This leads up onto the right edge of a ridge (the main part of
which is deep L&auml;tchen), passing right of the OAV ski marker pole.
This is an easy walk above a short (climbable) cliff looking down onto <a
href="../newcaves/cu9803">CUCC 1998-03</a>. When this easy walk is
interrupted by a step down, head leftish over a series of limestone steps
to reach a descent into a large broken area (near <a
href="173.htm">173</a>). Climb steeply left up boulders to a large cairn,
then along a sloping limestone shelf. Shortly ahead is an abrupt
headwall, below which is the shaft of <b>Lost Rucksack Cave</b> (given
temporary number CUCC 1993 01). The area could also be reached (with more
difficulty) from the "central" plateau area towards <a
href="76.htm">76</a>, and also via the "Geologists' walk" which passes
much further left via <a href="171.htm">171</a> and <a
href="172.htm">172.</a>
<p><center><a href="../plateau/others/l/lrh.htm">
<img alt="Photo of 1993 descent" src="../plateau/others/t/lrh.jpg"
width=123 height=169></a><br>
<b>Adam Cooper descending to place a bolt below the lip in 1993</b></center>
<p>Found in 1993, it was intended to mark the cave but not descend. However
Adam Cooper's rucksack (containing the rope), placed unwisely near the edge,
made the first descent. Adam followed on a ladder to retrieve it, then placed
a bolt for a further descent on rope. The shaft continued beside a snow
plug, but was deemed unsuitable for further exploration in shorts. The
find was not relocated in 1993, so exploration stopped. Found again in 1995
whilst marking other known entrances, and probably seen again in 1996.
<p>After a first descent placing a bolt again showed it unsuitable for
exploration in shorts, a determined effort by Wookey in 1998 pushed the
second pitch, between hanging death ice and snow to a definite choke.
However, partway down this pitch was a window with a draught, leading to a
third pitch (one bolt at takeoff, another just below). This was nn metres to
a final choke.
<p>The whole cave is formed on a fault which forms a SE-facing scarp on the
surface. A short distance NE of the entrance, the fault line cuts a
lower-lying area. The draught, which was mostly outward through the head of
the third pitch during the final exploratory trip, periodically reverses for
10-15 seconds. It would appear to be powered by surface breezes via various
other small windows to the surface, most probably including ones lower down
in the depression to the NE.
<p><center><a href="others/200.png"><img alt="1998 survey 27k gif"
width=645 height=662 src="others/200.png"></a></center>
<p><b>Exploration:</b> Discovery and initial descent CUCC 1993 (Adam Cooper),
bottomed in three trips in 1998 (Wookey, Andy Waddington).
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