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The Geomagnetism Program established an observatory near Fresno in 1980. The observatory is on the USFS San Joaquin Experimental Range (SJER) of the US Forest Service under terms of an agreement with the USGS and the Geomagnetism Program.
The Geomagnetism Program established an observatory near Fresno in 1980. The observatory is on the USFS San Joaquin Experimental Range (SJER) of the US Forest Service under terms of an agreement with the USGS and the Geomagnetism Program.