Grand Canyon sand
By Pacific Coastal and Marine Science Center
2008 (approx.)
![A very close-up photo of sand grains from the Grand Canyon River, with a centimeter scale drawn on top.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/grandcansand.jpg?itok=0O23I_jP)
Detailed Description
Grand Canyon sand was photographed with a hand-held point-and-shoot camera in a waterproof housing.
Sources/Usage
Public Domain.