NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: What Three Words at sea
From: Gary LaPook
Date: 2018 Jun 30, 12:58 -0700
From: Gary LaPook
Date: 2018 Jun 30, 12:58 -0700
The MGRS is just a modification of the UTM (Universal Transverse Mercator) grid system. There is another useful system, GEOREF, which uses the standard latitude and longitude coordinates but expressed in a short, unambiguous, notation.
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https://en.wikipedia.org/wiki/Universal_Transverse_Mercator_coordinate_system