Mr. Shapiro
you make the assumption that everyone works in only one area in a mapset.
if you are working with data all over the US sometimes it makes sense to
be able to just edit the zone if you are working in UTMS and just change
where you are in order to be able to work with the data in one location
without continuously getting in and out of grass.
Linda Bragg
This way you can keep several mapsets in one location.