Low-flying Helicopter Towing Geophysical Device
![Low-Flying Helicopter](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/low%20flying%20helicopter.jpg?itok=P0s50TMg)
Detailed Description
A low-flying helicopter towing a geophysical device collects scientific data on groundwater and geology.
Sources/Usage
USGS photo
A low-flying helicopter towing a geophysical device collects scientific data on groundwater and geology.
USGS photo