Part of the completed monitoring site at the Cayey geomagnetism observatory
By Supplemental Appropriations for Disaster Recovery Activities
2020 (approx.)
![Part of the completed monitoring site at the Cayey geomagnetism observatory](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/media/images/Puerto%20Rico%203.jpg?itok=TH8MzjIG)
Detailed Description
Part of the completed monitoring site at the Cayey geomagnetism observatory.
Sources/Usage
Public Domain.