The river begins to the west and within sight of Mount Hood in the Cascade Range (does not drain it) in the Mount Hood National Forest, and flows into the Sandy River between the city of Sandy and the Columbia River.
Date
Source
Taken from U.S. Census website here and modified by User:Finetooth. Watershed boundaries from the Sandy River Basin Partners here. City and community locations from Oregon Atlas and Gazetteer (2008), DeLorme Mapping, pp. 29–30, ISBN0-89933-347-8.
U.S. government work in public domain; my modifications licensed under GFDL, CC-BY-SA-3.0
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{{Information |Description={{en|1=Map of Bull Run River (Oregon) watershed in Multnomah and Clackamas counties, Oregon, United States. The river begins near Mount Hood in the Cascade Range and flows into the Sandy River between the city of Sandy and the C