Marking survey-stations

[Roger Johansson]

Dear Surveyors!

I don't know is this list is still active bur I hope so since I need some
advice from experienced surveyors. What is the best way to mark permanent
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).

Is there any better way to do this? And should one be able to remove the
station-markers in the future when the survey is considered to be finished?
Leave nothing but footprints they said..

I hope to hear your suggestions and advice!

Best Regards

Roger Johansson, Bomsund, Sweden


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Roger Johanssson
Bomsund 2196
S-830 76  STUGUN

tfn:    0695-311 20
mob:  070-691 00 22
roger.johansson@mail.op.se