Lampreys are using a temporary fish ladder while the dam is under construction, Location Notes: Middle Columbia River Watershed (Oregon and Washington)
Temporary fish ladder at the Bonneville Dam on the Washington side. Dam was under construction, Location Notes: Middle Columbia River Watershed (Oregon and Washington)
Releasing marked fish above Bonneville Dam with the anal and right vental removed, Location Notes: Middle Columbia River Watershed (Oregon and Washington)
Temporary fish ladder on the Oregon side of the Bonneville Dam. There is a salmon in air at left side of jump, Location Notes: Middle Columbia River Watershed (Oregon and Washington)