Here's more accurate
https://www.ngdc.noaa.gov/geomag-web/#declination Radek S.
_______________________________________________ Therion mailing list Therion@speleo.sk https://mailman.speleo.sk/listinfo/therion
Here's more accurate
https://www.ngdc.noaa.gov/geomag-web/#declination Radek S.
_______________________________________________ Therion mailing list Therion@speleo.sk https://mailman.speleo.sk/listinfo/therion