Dennis Risser and Kyle Ohnstad sampling a spring in Salt Spring State Park, Pennsylvania
![Photograph of 2 people sampling a spring](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/media/images/RisserSampling2.jpg?itok=BTEEoT3V)
Detailed Description
Dennis Risser and Kyle Ohnstad sampling a spring in Salt Spring State Park, Pennsylvania
Sources/Usage
Public Domain.
Charles A. Cravotta, III, USGS