Observatories
The geographic distribution of Geomagnetism Program observatories. Click on the observatory name for details of each facility.
BRW
Barrow
BOU
Boulder
CMO
College
DLR
Del Rio
FRD
Fredericksburg
FRN
Fresno
GUA
Guam
HON
Honolulu
NEW
Newport
SJG
San Juan
SHU
Shumagin
SIT
Sitka
BSL
Stennis
TUC
Tucson
Map of USGS Magnetic Observatory Locations. The geographic distribution of Geomagnetism Program observatories. Click on the observatory name for details of each facility.