Gerritt Posted December 26, 2009 Report Share Posted December 26, 2009 http://news.nationalgeographic.com/news/20...earth-core.html G. Link to comment Share on other sites More sharing options...
Fisherman Posted December 27, 2009 Report Share Posted December 27, 2009 (edited) Ya, it's always on the move although adding or subtracting the annual declination to adjust for topo maps isn't all that much unless you plan on trekking for tens of kms and have to get to a very specific point. As long as you are using it as a safety item to get off the lake in a snowstorm or "out of the woods" to a general area, we're still pretty safe. Edited December 27, 2009 by Fisherman Link to comment Share on other sites More sharing options...
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