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- The research upon which this publication is based was supported by funds provided by the United States Department of Interior, Office of Water Resources Research, as authorized under the Water Resources Research Act of 1964.1
- The research upon which this report is based was financed in part by the U.S. Department of the Interior, Washington, D.C., under the Mt. St. Helens Research and Development Program.1
- Tualatin River, Clackamas County, Oregon, United States4
- Lolo National Forest, Missoula County, Montana, United States3
- Bitterroot National Forest, Ravalli County, Montana, United States2
- Bandon, Coos County, Oregon, United States1
- Clearwater National Forest, Clearwater County, Idaho, United States1
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