Scientists doing field work at Elwha River

4-photos of scientists doing field work on boats, and in or near the water

Detailed Description

Researchers survey Elwha River elevation and depths. Clockwise from upper left: setting up a traditional survey instrument above the river; measuring river depths from a kayak with sonar and GPS; walking the beach with GPS backpacks; and determining offshore depths using a personal watercraft with GPS and sonar.


Image Dimensions: 2073 x 1431

Date Taken:

Location Taken: Olympic National Park, WA, US