Skip to main content
U.S. flag

An official website of the United States government

Sediment on the bottom of San Juan Channel

By Pacific Coastal and Marine Science Center
Photographs of sediment from underwater, taken up close to show the various, individual grains of sand.
Original Thumbnail Medium

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.