Marking survey-stations (Roger Johansson)

[Andreas Neumann]

Roger - you may also try to use reflective tape in case there is no danger of
flooded galleries.

In Switzerland it is quite common to use reflective tapes to mark major survey
station. If there is no water, they won't disappear and they are easier to find.
If you don't need them any more, you can easily remove them.

> survey-stations? These stations has to be relocated when the survey is
> continued perhaps many years after the first survey was done.
> 
> I've seen and heard of several ways to do this, for example cairns,
> carbide
> soot markings, bolts, etc, but they all seems to have some major
> disadventages. Cairns will not withstand running water or clumsy
> cavers.
> Bolts are time-consuming to place and might make the cave look littered
> (carbide-soot looks even worse).


--     
The only thing that stands between a man and what he wants from
life is often merely the will to try it and the faith to believe
that it is possible ...
-- M. DeVos
    
----------------------------------------------     
Andreas Neumann - Department of Cartography     
Swiss Federal Institute of Technology (ETH)     
ETH Hoenggerberg, CH-8093  Zurich, Switzerland     
Phone: ++41-1-633 3031, Fax: ++41-1-633 1153     
e-mail: neumann@karto.baug.ethz.ch     
www: http://www.karto.ethz.ch/neumann/     
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