page_title: Collawash River
hierarchical_section_title: Collawash River
caption_attribution_description: General notes: Close to its junction with the Clackamas River.
context_page_description: The Collawash River is a 12-mile tributary of the Clackamas River in the U.S. state of Oregon. Formed by the confluence of Elk Lake Creek and the East Fork Collawash River in the Cascade Range, it flows generally north-northwest from source to mouth through the Mount Hood National Forest. The largest tributary of the upper Clackamas, it provides about a third of bigger river's low-flow volume. About 35 percent of its watershed of 150 square miles is protected as wilderness.
  Fish habitat in the watershed is rated good to excellent. Catch-and-release fishing for trout is allowed on the main stem and the Hot Springs Fork tributary, but the streams are closed to fishing for salmon and steelhead. For whitewater runners, the river is considered as two or three sections which range from class II to class V on the International Scale of River Difficulty. Suggested flow range is 500 to 1000 cubic feet per second.
context_section_description: The Collawash River is a 12-mile (19 km) tributary of the Clackamas River in the U.S. state of Oregon. Formed by the confluence of Elk Lake Creek and the East Fork Collawash River in the Cascade Range, it flows generally north-northwest from source to mouth through the Mount Hood National Forest. The largest tributary of the upper Clackamas, it provides about a third of bigger river's low-flow volume. About 35 percent of its watershed of 150 square miles (390 km²) is protected as wilderness.
  Fish habitat in the watershed is rated good to excellent.  Catch-and-release fishing for trout is allowed on the main stem and the Hot Springs Fork tributary, but the streams are closed to fishing for salmon and steelhead. For whitewater runners, the river is considered as two or three sections which range from class II to class V on the International Scale of River Difficulty.  Suggested flow range is 500 to 1000 cubic feet per second (14 to 28 m³/s).
caption: A deck arch bridge over the river, pictured in 1957
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