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98 lines
4.5 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0//EN">
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<title>
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Cambridge University Caving Club Prospecting Handbook.
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</title>
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</head>
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<body>
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<center><h2>CAMBRIDGE UNIVERSITY CAVING CLUB<br>
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PROSPECTING HANDBOOK</h2>
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<h3>Taking bearings</h3></center>
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<p>In the long term, every cave that gets a number should be on a
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<a href="survey/ontop.htm">surface survey</a> carried out to the same
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accuracy <b>and with equally good sketching as the underground surveys</b>
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(see the <a href="survey/index.htm">Surveying Guide</a>). Failing that, a
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good <a href="survey/gps.htm">GPS fix</a> should mean that the immediate
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vicinity can be found again. However, for prospecting and initial exploratory
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work, it is usually good enough to take bearings from the entrance and make a
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good sketch or take photographs.
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<p>In theory, any cave can be located by taking bearings to two other known
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points. For this to work at all well, the bearings should be as nearly as
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possible at right angles to each other, and the points should be clearly
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recognisable, well-defined and not too far away. As these criteria are not
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always readily met, it is usually worth taking extra bearings on several
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points (ie. at least three) which can be used for confirmation or for
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spotting duff ones.
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<p>In general, sharp pointy peaks which can be recognised over quite a wide
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area are best, so that the Bräuning Zinken is excellent. Peaks with very
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rounded or multiple summits are generally not useful, so that the Vd.
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Schwarzmooskogel, for example, is particularly bad. In this case, it is
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useful to include a sketch to say exactly which point was used. The apparent
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summit, as seen from Top Camp, is usually called "VSK nipple". This is a good
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50m below the true summit, but appears well-defined. It is fine for finding
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caves in the field but is <b>not</b> adequate for locating them on a map.
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<p>In the cave descriptions, bearings are quoted with a series of standard
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<a href="abbrev.htm">abbreviations for landmarks</a>, which gives a good
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indication of which ones are most useful.
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<p>Ideally, take bearings on one of the points identified in the pictures
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below (follow the links to useful sized images on which the peaks are named).
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Failing that, be sure to identify your feature correctly, using a good map
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(ie. the Alpenvereinkarte 1:25000 sheet 15/1, Totes Gebirge West), and write
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down the name in full, preferably with a sketch.
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<p><a href="../piclinks/bw_pks.htm"><img src="../tinypix/bw_pks.jpg"></a>
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<br>A view of the Bräuning Wall (from far out on the plateau) showing
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which peak is which.
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<p><a href="../piclinks/brw-b8.htm"><img src="../tinypix/brw-b8.jpg"></a>
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<br>A view showing how the Bräuning Wall becomes foreshortened from
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the "near" plateau and approach to Schwarzmooskogel ridge.
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<p><a href="../piclinks/wildkg.htm"><img src="../tinypix/wildkg.jpg"></a>
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<br>A view identifying the peaks visible to the north of the plateau -
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Schönberg, Große and Kleine Wildkogel and Grieskogel
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<p><a href="../piclinks/hskvsk.htm"><img src="../tinypix/hskvsk.jpg"
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width=300 height=140></a>
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<br>A view south from Hinterer Schwarzmooskogel showing the Trisselberg
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to the left and behind the serried ranks of false summits on the Vorderer
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Schwarzmooskogel. On the far right, Bräuning Nase can be seen.
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<p><a href="../piclinks/9603vd.htm"><img src="../tinypix/9603vd.jpg"></a>
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<br>A view of peaks seen south from the east side of the Hinterer
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Schwarzmooskogel.
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<p>(More views to follow - however, there's no point until we have actually
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identified the summits on the views with complete certainty :-)
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<hr>
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<!-- LINKS -->
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<img alt=">" src="../../icons/lists/0.png">
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<a href="index.htm">Expedition Handbook</a> - Intro<br>
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<img alt="--->" src="../../icons/lists/1.png">
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Back to <a href="look4.htm">Prospecting Guide</a><br>
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<img alt="--->" src="../../icons/lists/1.png">
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Back to <a href="survey/ontop.htm">Surveying methods - surface</a><br>
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<a href="../infodx.htm">Index to info/topics pages</a><br>
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<img alt=">" src="../../icons/lists/0.png">
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<a href="../indxal.htm">Full Index to area 1623</a><br>
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<img alt=">" src="../../icons/lists/0.png">
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<a href="../areas.htm">Area/subarea descriptions</a><br>
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<img alt="--->" src="../../icons/lists/1.png">
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<a href="../1626/index.htm">Adjacent area 1626</a><br>
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<img alt=">" src="../../icons/lists/0.png">
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<a href="../index.htm">Back to Expedition Intro page</a><br>
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<a href="../../index.htm">Back to CUCC Home page</a><br>
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