an interesting bean 
TAke a look y’all https://www.ngdc.noaa.gov/geomag/calculators/mobileDeclination.shtml
Government websites are all one of two types. Either they’re a dumpster fire that people are forced to use or they offer information extremely well but no one ever goes to them
Corsair of Mastodon@timmy honestly NOAA is one of the best government websites, I use them a lot for sailing
@whiskeysailor they have a chart of magnetic declination for the world where you can move a slider to shift the year between 1600 and today. I’m not sure why I’d need it, but it’s there.
@timmy they also have free nautical charts of the USA in pdf which are actually really useful