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Old August 14, 2011, 01:11 PM   #13
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Join Date: November 13, 2006
Posts: 5,997
I assume you are using Military Grid Reference system on a GPS,and have ruled in your 1 k lines from the tics on the margins of standard USGS topos.
If you look at enough Silva Brunton,Suunto,orienteering compasses,I think you will have a 1-24,000 grid on the clear base,or they will include a grid ref card.If all else fails,you can carefully make one.
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