The customized science raft from the University of Montanas Flathead Lake Biological Station takes velocity and depth measurements while floating down the North Fork of the Flathead River in June. A crew has been using the raft to gather information that will be useful for a broad research project on salmon rivers. Chris Jordan/Daily Inter Lake
September 10, 2006
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September 10, 2006 1 a.m.
Salmon river of no return
Scientists use salmonless Flathead system as a control for studies of sea-going fish