Helicopter survey in Yellowstone National Park
By Volcano Hazards Program
May 2022 (approx.)
![Color photograph of instrument flying over volcano](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/media/images/Fig01%20from%20CourtesyNotificationLetter4-21-22%20AEM%2BMT%20v7.jpg?itok=Lp0zZgx2)
Detailed Description
Photo of helicopter with loop suspended under it flying over Yellowstone National Park.
Sources/Usage
Public Domain.