[pct-l] North magnetic pole is adrift

[Slyatpct at aol.com (Slyatpct@aol.com)]

In a message dated 12/10/2005 2:27:44 PM Eastern Standard Time, 
stewjohns@comcast.net writes:

> Which brings up a question.  I have the old guide books which have all of 
> California in one book, and Oregon and Washinton in the other book.  When they 
> came up with the new versions, did the Declination settings change for each 
> section?
> 

Yes they change over time.  Here's a good site where you can put in the 
closest zipcode or waypoint to get the current declination.

http://www.ngdc.noaa.gov/seg/geomag/jsp/Declination.jsp