Sediment on the bottom of San Juan Channel
![Photographs of sediment from underwater, taken up close to show the various, individual grains of sand.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/PacificSandLanceFig5.jpg?itok=PdYphXFy)
Detailed Description
Bottom photographs of surface sediment obtained with a specialized, ship-lowered underwater camera developed by USGS scientists and nicknamed the Flying Eyeball. Scale shown on photographs. Image at left taken near the crest of a large sand wave; image at right in a trough.
Sources/Usage
Public Domain.