Boulder (BOU) observatory

IAGA code	BOU
Location	Boulder
Country	United States of America
Open-Close	1964-
INTERMAGNET member (view)

Website	http://geomag.usgs.gov/monitoring/observatories/boulder/

Altitude	1682 m

Geographic coordinates		Geomagnetic coordinates (IGRF-13 2020.5)		Corrected geomagnetic coordinates (IGRF-13 2020.5)
Latitude	Longitude	Latitude	Longitude	Latitude	Longitude
40.137°N	254.763°E	47.64°N	322.24°E	48.24°N	322.19°E

BOU contributes to ASY indices				K=9 lower limit	512 nT