Col1 Col2 Col3 Col4 Col5 Col6 Col7 Col8
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A B C D E F G H
B D E F A C H G
C A F H D G E B
D K L C Q A R K
E C R Q H L C A
Col1 Col2 Col3 Col4 Col5
Col3a
Col5a
A B C D E
B D E F A
C A F H D
D K L C Q
E C R Q H
Hdg1 Hdg2 Hdg3 Hdg4 Hdg5
Go Colts
Hdg6
Col1 Col2 Col3 Col4 Col5 Col6 Col7 Col8
Col4a Col6a
Col4b Col6b Col8b
km/h Kaplow Zammo Billybob
A B C D E F G H
B D E F A C H G
C A F H D G E B
D K L C Q A R K
E C R Q H L C A
Tributary Average
discharge
Drainage basin
ft³/s m³/s mi2 km2
Snake River 56,900 1,610[1] 107,500 278,400[2]
Willamette River 37,400 1,060[1] 11,460 29,680[3]
Kootenay River (Kootenai) 30,650 868[4] 19,420 50,300[5]
Pend Oreille River 26,430 748[6] 25,792 66,800[7]
Cowlitz River 9,140 259[8] 2,586 6,700[9]
Spokane River 7,900 224[10] 6,680 17,300 [11]
Lewis River 6,125 173[12] 1,046 2,710[13]
Deschutes River 5,845 166[14] 10,700 27,700 [11]
Yakima River 3,542 100[15] 6,150 15,900[16]
Wenatchee River 3,079 87[17] 1,350 3,500[11]
Okanogan River 3,039 86[18] 8,340 21,600[19]
Kettle River 2,925 83[20] 4,200 10,880[21]
Sandy River 2,257 64[22] 508 1,316[23]
John Day River 2,060 58[24] 8,010 20,750[25]
  1. ^ a b Cite error: The named reference USGSrivers was invoked but never defined (see the help page).
  2. ^ "USGS Water Resources of the United States: Boundary Descriptions and Names of Regions, Subregions, Accounting Units and Cataloging Units". United States Geological Survey. 2007. Retrieved 2008-09-16. Sum of Subregion 1704, Upper Snake, Subregion 1705, Middle Snake, and Subregion 1706, Lower Snake.
  3. ^ Willamette River Basin, Portland Bureau of Environmental Services (2008). Retrieved on 2008-09-16.
  4. ^ Subbasin Overview, Kootenai Subbasin Plan, Northwest Power and Conservation Council
  5. ^ The Rivers, Balance of Power: Hydroelectric Development in Southeastern British Columbia; Touchstones Nelson: Museum of Art and History. Retrieved on 2008-09-16.
  6. ^ Water Data Report WA-05-1 "Pend Oreille, Kettle, and Colville River Basins, and the Columbia River from the International Boundary to the confluence with the Spokane River" (pdf). United States Geological Survey. 2005. Retrieved 2008-10-19. {{cite web}}: Check |url= value (help) Discharge data taken from a gauge at the U.S.–Canada border, 16.1 miles (25.9 km) from the mouth, measuring data from about 25,200 square miles (65,000 km2), about 98 percent of the total watershed.
  7. ^ Seven Mile Project Water use Plan, BC Hydro. Retrieved on 2008-09-16.
  8. ^ "Water-data report 2007: USGS 14243000 Cowlitz River at Castle Rock, WA" (PDF). United States Geological Survey. 2007. Retrieved 2008-10-24. Discharge data taken from a USGS gauge 14243000 at Castle Rock, 17.3 miles (27.8 km) from the mouth, measuring the flow from about 2,238 square miles (5,800 km2) or 85 percent of the total watershed.
  9. ^ Calculated by summing subbasin sizes listed in Lower Columbia Tributaries, Northwest Power and Conservation Council; and Toutle Management Plan, Northwest Power and Conservation Council. Retrieved on 2008-09-16.
  10. ^ Benke, Arthur C. (2005). Rivers of North America. Academic Press. p. 650. ISBN 9780120882533. Retrieved 2008-10-16. {{cite book}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)
  11. ^ a b c "Boundary Descriptions and Names of Regions". US Geographical Survey. Retrieved 2008-09-10.
  12. ^ Lower Columbia Fish Recovery Board (December 2004). "Volume II – Subbasin Plan Chapter G – NF and EF Lewis" (PDF). Lower Columbia Salmon Recovery and Fish & Wildlife Subbasin Plan. Northwest Power and Conservation Council. Retrieved 2008-10-14.{{cite web}}: CS1 maint: date and year (link)
  13. ^ "Description: Lewis River Drainage, Mount St. Helens, Washington". United States Geological Survey. 1999. Retrieved 2008-10-14.
  14. ^ Loy, William G. (2001). Atlas of Oregon. Eugene, Ore.: University of Oregon Press. pp. 164–65. ISBN 0-87114-101-9. {{cite book}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)
  15. ^ "Yakima River and Esquatzel Coulee Basins and the Columbia River from Richland to Kennewick], Water Resources Data-Washington Water Year 2005" (PDF). United States Geological Survey. Retrieved 2008-10-16. Discharge data taken from USGS gauge 12510500 at Kiona, 29.9 miles (48.1 km) from the mouth, measuring the flow from about 91 percent of the total watershed.
  16. ^ "Yakima Subbasin Plan Overview" (PDF). Northwest Power and Conservation Council. Retrieved 2008-09-16.
  17. ^ "Wenatchee River Basin: 12459000 Wenatchee River at Peshastin, WA" (PDF). United States Geological Survey. Retrieved 2008-10-16.. Discharge data taken from USGS gauge 12459000 at Peshastin, 21.5 miles (34.6 km) from the mouth, measuring the the flow from about 1,000 square miles (2,600 km2) or 77 percent of the total watershed.
  18. ^ Water Data Report WA-05-1, chapter Okanagan River Basin. Retrieved on 2007-04-20. Discharge data taken at Malott, Washington, 17 miles (27 km) from the mouth, measuring the flow from about 8,080 square miles (20,900 km2), about 97 percent of the total watershed.
  19. ^ "Rivers". Natural Resources Canada. Retrieved 2008-09-10.
  20. ^ "Water-Data Report 2007: 12404500 Kettle River near Laurier, WA" (PDF). United States Geological Survey. 2007. Retrieved 2008-10-18. Discharge data taken from a USGS gauge near Laurier, 29.71 miles (47.81 km) from the mouth, measuring the flow from about 3,800 square miles (9,800 km2), about 90 percent of the total watershed.
  21. ^ Upper Columbia Subbasin Overview, Section 29, p. 8; Northwest Power and Conservation Council. Retrieved on 2008-09-16.
  22. ^ "Water-Data Report 2007: 14142500 Sandy River Below Bull Run River, near Bull Run, OR" (PDF). United States Geological Survey. 2008. Retrieved 2008-10-19. Discharge data from a USGS gauge near Bull Run, 18.4 miles (29.6 km) from the mouth, measuring the flow from about 436 square miles (1,130 km2), about 86 percent of the total watershed.
  23. ^ Taylor, Barbara (December 1998). "Salmon and Steelhead Runs and Related Events of the Sandy River Basin - A Historical Perspective" (PDF). Portland General Electric. Retrieved 2008-10-12.{{cite web}}: CS1 maint: date and year (link)
  24. ^ "Water-Data Report 2007: 14048000 John Day River at McDonald Ferry, OR" (PDF). United States Geological Survey. 2007. Retrieved 2008-10-19. Discharge data from a USGS gauge at McDonald Ferry, 20.9 miles (33.6 km) from the mouth, measuring the flow from about 7,580 square miles (19,600 km2), about 95 percent of the total watershed.
  25. ^ Powell, Russ (2004). "John Day River Subbasin Fish Habitat Enhancement Project" (PDF). Bonneville Power Administration. Retrieved 2008-10-18. {{cite web}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)