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Coos River
Name origin: Indian name for a native tribe living near Coos Bay[1]
Country  United States
State Oregon
County Coos
Source Confluence of Millicoma River and South Fork Coos River
 - elevation 13 ft (4 m) [2]
 - coordinates 43°22′39″N 124°05′57″W / 43.3775°N 124.09917°W / 43.3775; -124.09917 [3]
Mouth Coos Bay
 - location Coos Bay, Coos County, Oregon
 - elevation 16 ft (5 m) [3]
 - coordinates 43°21′45″N 124°10′25″W / 43.3625°N 124.17361°W / 43.3625; -124.17361 [3]
Length 5.5 mi (8.9 km) [4]
Basin 610 sq mi (1,580 km2) [5]
Location of the mouth of the Coos River in Oregon

The Coos River flows for about 5.5 miles (8.9 km) into Coos Bay along the Pacific coast of southwest Oregon in the United States. Formed by the confluence of its major tributaries, the South Fork Coos River and the Millicoma River, it drains an important timber-producing region of the Southern Oregon Coast Range. The course of the Coos River and its major tributaries is generally westward through the mountains to the short main stem, which flows into the eastern end of Coos Bay near the city of Coos Bay.

Contents

Tributaries

Formed by the Williams River and Tioga Creek, the South Fork Coos River flows about 37 miles (60 km) from its source at 43°19′04″N 123°48′32″W / 43.3178914°N 123.8089822°W / 43.3178914; -123.8089822 (South Fork Coos River source) in the mountains of eastern Coos County.[6] The South Fork's largest tributary, the Williams River, rises at 43°11′42″N 123°37′11″W / 43.1951142°N 123.6198053°W / 43.1951142; -123.6198053 (Williams River source) in western Douglas County.[7] The combined length of the Williams, South Fork, and Coos rivers is about 63 miles (101 km).

Rising at 43°25′28″N 124°01′44″W / 43.4244444°N 124.0288889°W / 43.4244444; -124.0288889 (Millicoma River source), the Millicoma River, formed by its east and west forks near the unincorporated community of Allegany, flows generally west for about 9 miles (14 km) to the main stem.[8] The East Fork Millicoma River rises at 43°24′50″N 123°46′04″W / 43.4140042°N 123.767872°W / 43.4140042; -123.767872 (East Fork Millicoma River source), near Ivers Peak in northeastern Coos County.[9 ] The West Fork Millicoma River begins at 43°33′08″N 123°53′17″W / 43.5523382°N 123.8881567°W / 43.5523382; -123.8881567 (West Fork Millicoma River source) near Elk Peak in the northeastern corner of Coos County.[10 ]

See also

References

  1. ^ McArthur, Lewis A.; McArthur, Lewis L. (2003). Oregon Geographic Names, Seventh Edition. Portland, Oregon: Oregon Historical Society Press. pp. 228. ISBN 0-87595-277-1.  
  2. ^ "South Fork Coos River". Geographic Names Information System. U.S. Geological Survey. http://geonames.usgs.gov/pls/gnispublic/f?p=gnispq:3:::NO::P3_FID:1127273. Retrieved 2008-11-13.  
  3. ^ a b c "Coos River". Geographic Names Information System. U.S. Geological Survey. http://geonames.usgs.gov/pls/gnispublic/f?p=gnispq:3:::NO::P3_FID:1140087. Retrieved 2008-11-12.  
  4. ^ "Online Topographic Maps from the United States Geological Survey: Allegany Quad". TopoQuest. http://www.topoquest.com/map.php?lat=43.3775&lon=-124.099167&datum=nad83&zoom=4. Retrieved 2008-11-12.  
  5. ^ Shorebank Enterprise Pacific. "Strategic Framework: 2005–2015" (pdf). Coos Bay Watershed Association. http://www.cooswatershed.org/Publications/CWA_Strategic_Framework-Final.pdf. Retrieved 2008-11-12.  
  6. ^ "Online Topographic Maps from the United States Geological Survey: Tioga Quad". TopoQuest. http://www.topoquest.com/map.php?lat=43.317891087&lon=-123.808976237&datum=nad83&zoom=4&map=auto&coord=d&mode=zoomin&size=m. Retrieved 2008-11-12.  
  7. ^ "Online Topographic Maps from the United States Geological Survey: Reston Quad". TopoQuest. http://www.topoquest.com/map.php?lat=43.195114&lon=-123.619805&datum=nad83&zoom=4. Retrieved 2008-11-12.  
  8. ^ "Online Topographic Maps from the United States Geological Survey: Allegany Quad". TopoQuest. http://www.topoquest.com/map.php?lat=43.424444&lon=-124.028889&datum=nad83&zoom=4. Retrieved 2008-11-12.  
  9. ^ "Online Topographic Maps from the United States Geological Survey: Ivers Peak Quad". TopoQuest. http://www.topoquest.com/map.php?lat=43.414004&lon=-123.767872&datum=nad83&zoom=4. Retrieved 2008-11-13.  
  10. ^ "Online Topographic Maps from the United States Geological Survey: Elk Peak Quad". TopoQuest. http://www.topoquest.com/map.php?lat=43.552338&lon=-123.888157&datum=nad83&zoom=4. Retrieved 2008-11-13.  

External links

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