Low-flying helicopter survey
![Low-flying helicopter survey](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/IMG_0144.jpg?itok=8_3s9zCx)
Detailed Description
The USGS conducts low-level helicopter flights to study the below-surface geology of various locations throughout the nation. These helicopters often tow a large, cylindrical sensor, which remotely captures underground data. Such surveys help scientists and managers better understand natural resources, such as aquifers and available groundwater.
Sources/Usage
Public Domain.