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{{WikiProject Maps|importance=High }}
{{WikiProject Military history|class=B
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==Comments==
This needs to be categorized.
:{{Done}}
== Georef? ==
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I see no link to "point reference system" nor article by that name. Is the concept explained in another article, or should the distinction between that and other systems be explained in this one? [[User:Jim.henderson|Jim.henderson]] ([[User talk:Jim.henderson|talk]]) 09:29, 16 January 2011 (UTC)
== What is a SQ_ID? ==
The article not explains neither point to a source about.<span style="font-size: smaller;" class="autosigned">— Preceding [[Wikipedia:Signatures|unsigned]] comment added by [[Special:Contributions/179.208.229.37|179.208.229.37]] ([[User talk:179.208.229.37|talk]]) 14:38, 1 September 2013 (UTC)</span><!-- Template:Unsigned IP --> <!--Autosigned by SineBot-->
:It means Square ID. Also, sign your posts in future using <nowiki>"~~~~"</nowiki>, so that we know who we're talking to. – [[User:Nohomers48|Nohomers48]] <small>([[User talk:Nohomers48|talk]] • [[Special:Contributions/Nohomers48|contribs]])</small> 20:51, 1 September 2013 (UTC)
== Sentences on clipping and labeling are confusing ==
From the article:
:Related to this is the primacy of the southwest corner of the polygon being the labeling point for an entire polygon. In instances where the polygon is not a square and has been clipped by a grid zone junction, the polygon keeps the label of the southwest corner as if it had not been clipped.
I've been researching MGRS for a few days, but the above is totally opaque to me. Does this have something to do with the fact that locations that border GZJs are canonicalized by some software libraries (e.g. 17SKT --> 16SGB5807198790)? We should clarify the above with an example. [[User:Ericbg05|Ericbg05]] ([[User talk:Ericbg05|talk]]) 13:39, 10 June 2014 (UTC)
:It's talking about how some squares like 18N SF don't have a 0,0, easting,northing as the southwest corner is outside of the zone. It's because of UTM. The squares are square in reference to the equator, and the vertical "central meridian" line in the centre of each zone.<ref>https://en.wikipedia.org/wiki/Universal_Transverse_Mercator_coordinate_system#Locating_a_position_using_UTM_coordinates</ref> In UTM, that line is 500,000 easting. 0 easting doesn't exist, it's in the zone to the west. So in MGRS/USNG, the squares on the edges of zones are clipped, but the squares on the west side still use the soutwest corner for 0,0 easting,northing, even though that's a possibly invalid point. I might try to clear up the article, but I want to do more work with USNG/MGRS first to ensure my understanding is correct. [[User:Mtfurlan|Mtfurlan]] ([[User talk:Mtfurlan|talk]]) 16:32, 27 October 2016 (UTC)
{{reflist-talk}}
== Also referred to as "NATO UTM" ==
Referenced by [http://www.rcn.montana.edu/resources/converter.aspx this converter], where the coordinates match the lat/lng to MGRS conversion done by [http://www.movable-type.co.uk/scripts/latlong-utm-mgrs.html a different converter].
[https://books.google.com/books?id=SkSgBgAAQBAJ&pg=PT112&lpg=PT112&dq=%22NATO+UTM%22&source=bl&ots=vbPIHZ_Uto&sig=KGxt6yT8nRGVVS7pknC0iOXji1g&hl=en&sa=X&ved=0ahUKEwiroKjjqvvPAhUI6oMKHYb5A54Q6AEISTAG#v=onepage&q=%22NATO%20UTM%22&f=false This book] also references it, but I'm not buying the book to look at the books reference.
I'm not going to edit the actual article without a better reference than a google books link to a book whose sources I can't check.
[[User:Mtfurlan|Mtfurlan]] ([[User talk:Mtfurlan|talk]]) 16:19, 27 October 2016 (UTC)
== How coordinates of the joint of grid zone was made? ==
I don't know why some zone starting with zero numbers and some zone starting with the numbers 6 (starting point). [[Special:Contributions/27.109.113.245|27.109.113.245]] ([[User talk:27.109.113.245|talk]]) 08:55, 20 May 2023 (UTC)
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