Electronic mapping software? So you could print map cards with routes drawn (neatly!) on and keep the master map clean.
Memory map and stuff a bit expensive of course, but some of the online ones aren't.
From my flying days I used a 'Chinagraph' pencil for route planning on laminated maps. Easy to rub off afterwards and leaves no trace.
Here is a link to the first pilot shop in the UK that came up on google:
Not sure if it is of interest but normal permanent markers can be found in thinner points I think. As far as cleaning permanent marker off laminated maps I do know that on whiteboards if you need to get ordinary permanent marker ink off you over-scribble with a normal whiteboard marker then wipe and the permanent marker comes off. Not sure if that will work on laminated maps but if it does then perhaps you can use something like a fine fibre tip permanent marker. Perhaps even a felt tip pen might work in a similar way. However that is a big PERHAPS in that as I have no idea if the whiteboard eraser technique works on laminated maps nor finer felt tip pens.
Anyway, only putting the information out there in case of interest and you want to try it out on an unimportant part of one of your laminated maps.
Just another thought but harveys maps can come in a weather resistant paper and in the 1:25k scale. That would allow finer pencils to be used. Not sure if you can erase coloured pencil marks that well but with a finer pencil you could at least use different symbols such as dashed line, dash and dot line, line made up with plus symbols, etc. to mark different routes.
Personally I hate marking on maps but understand your reasons for doing so. A mate used highlighters on one map and I went out to get highlighters to do similar for one of my trips. Got as far as uncapping one highlighter to mark key details (not the route line but key features like paths crossing, bugout routes, likely navigation difficulties and hazardous sections). Anyway I just couldn't do it. IMHO a map is a work of art and my scrawlings don't make it any better. It has everything you might need already on it.
ALoveSupreme wrote (see)
Correct. It is an act of stupefying arrogance and vanity to think you can improve on an OS map with a marker pen. Not to mention dangerous, in the case of the O/P quite possibly culpably so...
It seems a little odd to me, and quite unjustified, to so vehemently deny there could be any reason to mark a map? How about adding useful information specific to the trip, or not included by the mapmaker? (Although certainly best not to obscure any useful detail already present).
Have you seen the BMC DVD, 'Off-Piste Essentials', ALS? In the section on planning, the qualified guide extolls at some length the benefits of adding such information to his (laminated) map ahead of the trip.
He didn't strike me as vain, arrogant.... or unqualified!
What utter drivel
Um, here's a thought.
Would it be too much for them to carry two maps, one marked with their route, the other not marked at all so that they could read the two maps side by side and compare the difference.
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