I'm also wondering whether any of you might have a comment on a particular part of the wikipedia article:
"The contemporary compass rose appears as two rings, one smaller and set inside the other. The outside ring denotes true cardinal directions while the smaller inside ring denotes magnetic cardinal directions".
I am contemplating using this north arrow on our plans. I have rotated the inner ring by 13.5 degrees, the approximate local variation for Great Barrington, MA.
Although most plans in this area are still filed with reference to a historic field magnetic datum (and the deeds obviously reflect this practice), there are increasingly beneficial uses for reference to state plane coordinates, including new requirements of the MA Land Court, and integration with MassGIS and other efforts to catalog land information.
Therefore, in thinking about the use of this north arrow, I am most inclined to orient the major axis of the north arrow to MA State Plane Coordinates.
Any comments or suggestions would be appreciated. Modified By Alexander Thorp on 6/2/2008 at 11:29 AM