Tributaries and sub-tributaries are hierarchically listed in order from the mouth of the Columbia River upstream. Major dams and reservoir lakes are also noted.
List of major tributaries
The main river and tributaries are (sorted in order from the mouth heading upstream):
Left
tributary |
Right
tributary |
Length
(km) |
Basin size
(km2) |
Average discharge
(m3/s) |
---|---|---|---|---|
Lower Columbia
Mouth to Bonneville Dam | ||||
Youngs | 43 | 257.6 | 14.7 | |
Grays | 48 | 320 | 15.9 | |
Elochoman | 24 | 490 | 10.8 | |
Clatskanie | 40 | 269.2 | 10.6 | |
Cowlitz | 169 | 6,698 | 286.6 | |
Kalama | 72 | 530 | 34.5 | |
Lewis | 153 | 2,709 | 173.4 | |
Lake | 18 | 260 | ||
Willamette | 301 | 28,949 | 1,098.7 | |
Washougal | 53 | 550 | 24.7 | |
Sandy | 92 | 1,316 | 65 | |
Middle Columbia | ||||
Wind | 48 | 580 | 34.2 | |
Little White Salmon | 31 | 350 | ||
White Salmon | 71.3 | 1,000 | 30.4 | |
Hood | 40 | 720 | 27.6 | |
Klickitat | 154.3 | 3,496 | 44.5 | |
Fifteenmile Creek | 87 | 970 | 5.6 | |
Deschutes | 406 | 27,549.6 | 215.7 | |
John Day | 457 | 20,521.3 | 80.4 | |
Willow Creek | 127 | 2,300 | 0.9 | |
Umatilla | 143 | 6,345 | 14 | |
Upper Columbia | ||||
Walla Walla | 98 | 4,553 | 34.3 | |
Snake | 1,735 | 260,938.7 | 1,755.6 | |
Yakima | 344 | 15,930.4 | 100.3 | |
Crab Creek | 262 | 13,200 | 40.4 | |
Wenatchee | 85 | 3,473.1 | 103.7 | |
Entiat | 92 | 1,210 | 20.2 | |
Chelan | 6.6 | 2,390 | 57.8 | |
Methow | 129 | 4,727 | 44.4 | |
Okanogan | 185 | 21,385.7 | 99 | |
Nespelem | 580.8 | 2.5 | ||
Sanpoil | 95 | 2,540 | 11.4 | |
Spokane | 179 | 17,353.4 | 228.6 | |
Colville | 97 | 2,646.8 | 16.4 | |
Kettle | 282 | 10,877 | 82.3 | |
Pend Oreille | 771 | 67,055.5 | 850.2 | |
Kootenay | 780 | 50,298 | 868 | |
Whatshan | 581.4 | 12 | ||
Mosquito Creek | 435 | 10.2 | ||
Kuskanax Creek | 350.9 | 10.6 | ||
Halfway | 447.4 | 14.2 | ||
Incomappleux | 1,020 | 55.8 | ||
Akolkolex | 388.7 | 16.5 | ||
Illecillewaet | 62 | 1,213.3 | 61.4 | |
Jordan | 345.6 | 11.1 | ||
Downie Creek | 655.8 | 27.9 | ||
Goldstream | 954.4 | 39.5 | ||
Big Mouth Creek | 591.2 | 22.9 | ||
Canoe | 712.6 | 15.2 | ||
Wood | 841.7 | 18.1 | ||
Cummins | 262.6 | 8.5 | ||
Kinbasket | 261.3 | 7.6 | ||
Windy | 252.3 | 10.2 | ||
Sullivan | 632.5 | 18.9 | ||
Bush | 1,100.1 | 25.5 | ||
Gold | 566.4 | 27.9 | ||
Beaver | 1,163 | 54.3 | ||
Bluewater | 392.5 | 12.5 | ||
Waitabit Creek | 352.2 | 9.6 | ||
Blaeberry | 60 | 745.6 | 17.8 | |
Kicking Horse | 1,815.4 | 40.9 | ||
Canyon Creek | 161.7 | 4.9 | ||
Spillimacheen | 118 | 1,456.2 | 38 | |
Bugaboo Creek | 368.4 | 7.3 | ||
Forster Creek | 592.4 | 8.8 | ||
Horsethief Creek | 630.5 | 10 | ||
Toby Creek | 673.5 | 9 | ||
Dutch Creek | 676.5 | 7.9 |
Tributaries and sub-tributaries are hierarchically listed in order from the mouth of the Columbia River upstream. Major dams and reservoir lakes are also noted.
List of major tributaries
The main river and tributaries are (sorted in order from the mouth heading upstream):
Left
tributary |
Right
tributary |
Length
(km) |
Basin size
(km2) |
Average discharge
(m3/s) |
---|---|---|---|---|
Lower Columbia
Mouth to Bonneville Dam | ||||
Youngs | 43 | 257.6 | 14.7 | |
Grays | 48 | 320 | 15.9 | |
Elochoman | 24 | 490 | 10.8 | |
Clatskanie | 40 | 269.2 | 10.6 | |
Cowlitz | 169 | 6,698 | 286.6 | |
Kalama | 72 | 530 | 34.5 | |
Lewis | 153 | 2,709 | 173.4 | |
Lake | 18 | 260 | ||
Willamette | 301 | 28,949 | 1,098.7 | |
Washougal | 53 | 550 | 24.7 | |
Sandy | 92 | 1,316 | 65 | |
Middle Columbia | ||||
Wind | 48 | 580 | 34.2 | |
Little White Salmon | 31 | 350 | ||
White Salmon | 71.3 | 1,000 | 30.4 | |
Hood | 40 | 720 | 27.6 | |
Klickitat | 154.3 | 3,496 | 44.5 | |
Fifteenmile Creek | 87 | 970 | 5.6 | |
Deschutes | 406 | 27,549.6 | 215.7 | |
John Day | 457 | 20,521.3 | 80.4 | |
Willow Creek | 127 | 2,300 | 0.9 | |
Umatilla | 143 | 6,345 | 14 | |
Upper Columbia | ||||
Walla Walla | 98 | 4,553 | 34.3 | |
Snake | 1,735 | 260,938.7 | 1,755.6 | |
Yakima | 344 | 15,930.4 | 100.3 | |
Crab Creek | 262 | 13,200 | 40.4 | |
Wenatchee | 85 | 3,473.1 | 103.7 | |
Entiat | 92 | 1,210 | 20.2 | |
Chelan | 6.6 | 2,390 | 57.8 | |
Methow | 129 | 4,727 | 44.4 | |
Okanogan | 185 | 21,385.7 | 99 | |
Nespelem | 580.8 | 2.5 | ||
Sanpoil | 95 | 2,540 | 11.4 | |
Spokane | 179 | 17,353.4 | 228.6 | |
Colville | 97 | 2,646.8 | 16.4 | |
Kettle | 282 | 10,877 | 82.3 | |
Pend Oreille | 771 | 67,055.5 | 850.2 | |
Kootenay | 780 | 50,298 | 868 | |
Whatshan | 581.4 | 12 | ||
Mosquito Creek | 435 | 10.2 | ||
Kuskanax Creek | 350.9 | 10.6 | ||
Halfway | 447.4 | 14.2 | ||
Incomappleux | 1,020 | 55.8 | ||
Akolkolex | 388.7 | 16.5 | ||
Illecillewaet | 62 | 1,213.3 | 61.4 | |
Jordan | 345.6 | 11.1 | ||
Downie Creek | 655.8 | 27.9 | ||
Goldstream | 954.4 | 39.5 | ||
Big Mouth Creek | 591.2 | 22.9 | ||
Canoe | 712.6 | 15.2 | ||
Wood | 841.7 | 18.1 | ||
Cummins | 262.6 | 8.5 | ||
Kinbasket | 261.3 | 7.6 | ||
Windy | 252.3 | 10.2 | ||
Sullivan | 632.5 | 18.9 | ||
Bush | 1,100.1 | 25.5 | ||
Gold | 566.4 | 27.9 | ||
Beaver | 1,163 | 54.3 | ||
Bluewater | 392.5 | 12.5 | ||
Waitabit Creek | 352.2 | 9.6 | ||
Blaeberry | 60 | 745.6 | 17.8 | |
Kicking Horse | 1,815.4 | 40.9 | ||
Canyon Creek | 161.7 | 4.9 | ||
Spillimacheen | 118 | 1,456.2 | 38 | |
Bugaboo Creek | 368.4 | 7.3 | ||
Forster Creek | 592.4 | 8.8 | ||
Horsethief Creek | 630.5 | 10 | ||
Toby Creek | 673.5 | 9 | ||
Dutch Creek | 676.5 | 7.9 |