Here is some information on the internet related to map, compass, and GPS:
Using a Compass: Dealing with Declination
Magnetic Declination Estimated Value from NOAA
CalTopo — An excellent topographic map building website.
Digital hub for the scouts in BSA Troop 598
Here is some information on the internet related to map, compass, and GPS:
Using a Compass: Dealing with Declination
Magnetic Declination Estimated Value from NOAA
CalTopo — An excellent topographic map building website.