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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0//EN">
<html lang=en>
<head>
<title>1987: Cambridge Underground report</title>
</head>
<body>
<center><font size=-1>Cambridge Underground 1988 p 7</font>
<h2>Extensions to 113, "Sonnenstrahlh&ouml;hle"</h2>
<p><b>Mike Richardson</b></center>
<p>Entrance 113 had been extensively explored by previous expeditions to a
depth of about 450m. The surveyed route led across the head of a steep
descent to "Ibbeth Perilous" pitch. This had not been descended since 1980
when a caver (see <a href="report.htm#helmet">elsewhere</a> in this journal)
lost his helmet and light down it. In 1987, in the course of looking for
extensions across the tops of a number of ramps near the entrance, a descent
was made to the head of this pitch (although at the time it was not certain
that this was Ibbeth Perilous).
<p>A little way into the passage at the bottom of the entrance shaft, two
parallel steep ramps descend for about 15m. The ramps have been free-climbed,
however, an uncontrolled descent by Andy Farrow indicates that a rope is very
desirable. The second ramp is blocked at the bottom, but a small hole gives
access back to the bottom of the first. From here a short climb leads to a
jammed boulder above the first proper pitch.
<p>The shaft descends in a series of steps for a further 20m. These are
free-climbable with difficulty. A 13m drop then lands on an ice-rock
blockage, which previously contained the helmet and light, now recovered and
pesented to their owner. This point has been named "Marathon Ledge" after
Becka regurgitated a partially digested Marathon Bar over CHris from halfway
up the pitch above.
<p>The blockage was hammered out by a caver attached to a rope, after which
two short drops led to a 6m pitch to a large chamber. This proved to be in
the "Opera House" are of the original route.
<p>The earlier survey suffered from a compass of questionable calibration,
due to an encounter with a fridge (see <a href="../1983/41svy.htm">Cambridge
Underground 1984</a>). The survey of the new extension has now allowed the
orientation of the cave to be determined with greater accuracy. This is
important, since entrance 152 enters the cave lower down (below the "Purple
Pit"), and the entrance is only some 50m from an entrance into the
Larchenh&ouml;hle system discovered by German and French cavers in 1987. A
connection between 113-153 and the German-French entrance would add a
significant amount of length to the combined system.
<hr>
<!-- LINKS -->
<img alt="&gt;" src="../../../icons/lists/0.gif">
<a href="../../smkridge/113.htm">Sonnenstrahlh&ouml;hle</a>
Guidebook page<br>
<img alt="&gt;" src="../../../icons/lists/0.gif">
Cambridge Underground 1988,
<a href="../../../jnl/1988/index.htm">Table of Contents</a><br>
<img alt="&gt;" src="../../../icons/lists/0.gif">
1987 Expedition info:<br>
<img alt="---&gt;" src="../../../icons/lists/1.gif">
<a href="log.htm">Logbook</a><br>
<img alt="---&gt;" src="../../../icons/lists/1.gif">
Cambridge Underground Expo Report:<br>
<img alt="------&gt;" src="../../../icons/lists/2.gif">
<a href="report.htm">Expedition description</a><br>
<img alt="------&gt;" src="../../../icons/lists/2.gif">
<a href="158gd.htm">Donner-und-Blitzen H&ouml;hle</a>, Mike Richardson<br>
<img alt="---&gt;" src="../../../icons/lists/1.gif">
<a href="geolog.htm">Geology of the Totengebirge</a>, Jared West<br>
<!-- <img alt="---&gt;" src="../../../icons/lists/1.gif">
<a href="bcracc.htm">BCRA Caves &amp; Caving Report</a><br> -->
<img alt="&gt;" src="../../../icons/lists/0.gif">
<a href="../../pubs.htm#1987">Index</a> to all publications<br>
<img alt="&gt;" src="../../../icons/lists/0.gif">
<a href="../../index.htm">Back to Expeditions intro page</a><br>
<img alt="&gt;" src="../../../icons/lists/0.gif">
<a href="../../../index.htm">CUCC Home Page</a>
</body>
</html>