Chapter 32: Hiking Light – Here’s a Quick Link to Find Your Magnetic Declination

Even when hiking light you should take your map and compass. When you travel and hike in a new area, remember that your magnetic declination changes. Most maps include the declination. If you trim the map and carry only part of it, make sure the declination is written somewhere on the remaining part of your map. Magnetic declination in a location will change slowly so it’s good to update your maps. The following website explains how to quickly find your magnetic north declination. Just insert the zip code for a city near your hike, or the latitude and longitude. Then, click on “Compute Declination.” You’ll be given the declination in degrees. Hike light. Have fun. Be safe.
http://www.ngdc.noaa.gov/geomagmodels/Declination.jsp