The logbook is the place where we record the rigging of caves as we discover them. For a particularly fine example of rigging guides in a logbook see <ahref="../../years/2015/logbook.html">the 2005 logbook</a>.
When a cave is derigged, a good way of getting the rope lengths for your rigging guide is to leave the knots in ropes removed so they can be measured, but these days our caves are a bit deep and complicated for this to be feasible. Although a good survey and details of the belays can be used to estimate the length of rope needed, this is no substitute for measuring how much rope it actually took to rig.
<p>Complementing the passage description in vertical bits is a <b>Rigging
Guide</b>. This is usually easiest to do as a sketch, but include notes to
ensure that all bolts can be found again and any deviations and natural belays recognised.
<p>
You will already have an "Interim rigging guide" in the logbook entries of the trips, and also sketches on waterproof paper
which were made underground which were stored in the survey wallet and scanned to produce "notes-XXX.jpg" files in the online survey wallet for your trip. For small caves the logbook entry may be all you need.
<p>Collect together your notes for the rigging guide now, including all the pitch lengths. It is a good idea to copy these notes now and put them in the plastic survey wallet or to photograph them and put the files in the online survey wallets. The next step can take some time so get the rigging data in order now.
