Geologists taking field notes
![two people standing outside taking notes](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/media/images/CB%20IMG_6750.jpg?itok=GvVuHLoK)
Detailed Description
USGS Geologists Jean Self-Trail and Mercer Parker taking field notes, Prince George’s County
Sources/Usage
Public Domain.
USGS Geologists Jean Self-Trail and Mercer Parker taking field notes, Prince George’s County
Public Domain.