Rob Witter
![Rob Witter](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/Witter_gravel_1.jpg?itok=L8jZ6WBJ)
Detailed Description
Rob Witter examining the contact between glacial lake beds (grey, below) and river gravels (brown, above) that show how the landscape has changed over time.
Sources/Usage
Public Domain.
Rob Witter examining the contact between glacial lake beds (grey, below) and river gravels (brown, above) that show how the landscape has changed over time.
Public Domain.