Blue River (Oregon)

Blue River is a tributary of the McKenzie River in Linn and Lane counties in the U.S. state of Oregon. From its source at the confluence of Mann and Wolf creeks in the Cascade Range, it flows generally southwest to join the McKenzie near the community of Blue River. Saddle Dam and Blue River Dam block the river about 2 miles (3 km) from its mouth to form Blue River Reservoir, a multipurpose impoundment built in 1968 by the United States Army Corps of Engineers.

Blue River
Flowing through the forest
Location of the mouth of the Blue River in Oregon
Location
CountryUnited States
StateOregon
CountyLane and Linn
Physical characteristics
SourceConfluence of Wolf Creek and Mann Creek
  locationWillamette National Forest, Cascade Range, Linn County
  coordinates44°17′41″N 122°10′17″W
  elevation2,504 ft (763 m)
MouthMcKenzie River
  location
Blue River, Lane County
  coordinates
44°09′15″N 122°20′42″W
  elevation
1,040 ft (320 m)
Length17 mi (27 km)
Basin size87 sq mi (230 km2)
Discharge 
  locationnear Blue River, 0.9 miles (1.4 km) from the mouth
  average457 cu ft/s (12.9 m3/s)
  minimum0.80 cu ft/s (0.023 m3/s)
  maximum7,270 cu ft/s (206 m3/s)

The river's watershed lies almost entirely within the Willamette National Forest, dominated by western hemlock and Douglas-fir. Blue River was named for the striking blue color that apparently comes from its rocky bed.

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