Mobile geomag calculator

[Mike(Mont)]

You don't have to have a smartphone to use this site. You can enter your coordinates and elevation. There is a table that shows the calculations. You won't be able to use the compass unless you have a smartphone but in the upper left corner there is "magnetic storm index" with a marker line. "Low" is best. https://ngdc.noaa.gov/geomag/calcula...lination.shtml