Station Id: FRN
Location: O'Neals, CA
Latitude: 37.0913°N
Longitude: 119.7193°W
Geomagnetic Latitude: 43.12°N*
Geomagnetic Longitude: 306.64°E*
Elevation: 331 meters
Orientation: HDZF

* IGRF values as of 2015.

Flower field in Fresno, CA


The Geomagnetism Program established an observatory near Fresno in 1980. The observatory is on the Pacific Southwest Research Station of the US Forest Service under terms of an agreement with the USGS and the Geomagnetism Program.


Fresno magnetic observatory.
Fresno magnetic observatory.