Boulder Magnetic Observatory
By Geomagnetism Program
2011 (approx.)
![Boulder Magnetic Observatory Sign](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/boulder_sign.jpg?itok=y5C6SL45)
Detailed Description
Magnetometer at Boulder Observatory.
Sources/Usage
Public Domain.
Magnetometer at Boulder Observatory.
Public Domain.