Talk:Military Grid Reference System

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Georef?

Anyone heard of Georef? When I was in the Royal Observer Corps, many years ago, I remember we used "UTM" on some maps, which seems to be the Military grid reference system; co-ordinates (within Europe, say) were like "PQ 123 456". But on other maps, we used a system I remember being called "Georef". This had a similar notation — two letters to identify a major "square", then two or more digits to identify a point within the "square" — but was based on lat-long, not UTM; hence, the "squares" were curved-trapezoids. You got the accuracy of lat-long with the convenient notation of UTM / British grid. Now I can't find any info on Georef (which, if it really existed, sureley deserves a mention). Anyone ever heard of this? — Johantheghost 18:10, 2 December 2005 (UTC)[reply]

OK, to reply to myself, I found some info, and we now have an article on Georef. — Johan the Ghost _seance 11:21, 17 February 2006 (UTC)[reply]

What?

This makes no sense whatsoever. Anyone care to explain? How does someone have a legitimate lat and long and not know where on earth it is?!

Such an MGRS coordinate, standing alone, may be converted to latitude and longitude. But you still do not know the position on the Earth, unless you also know the geodetic datum that is used.