(USGS logo)U.S. Geological Survey

Oregon Hydrologic Units


USGS Open File Report 84-708 is the source for these Hydrologic Unit Codes (HUC) and
names. Areas are for the entire Hydrologic Unit - *not* for HUCs clipped by state
boundary.


A Hydrologic (Cataloging) Unit Code is an 8 digit number comprised of 4 levels. For example; HUC 17060103 is:

Accounting Unit 170800 - Lower Columbia River. Area = 6250 Sq. Mi.

17080001-- LOWER COLUMBIA-SANDY. OREGON, WASHINGTON. Area = 1110 Sq. Mi.
17080003-- LOWER COLUMBIA-CLATSKANIE. OREGON, WASHINGTON. Area = 896 Sq. Mi.
17080006-- LOWER COLUMBIA. OREGON, WASHINGTON.Area = 672 Sq. Mi.


Accounting Unit- 171002 - Northern Oregon Coastal: The drainage into the Pacific Ocean from the Columbia River Basin boundary to the Umpqua River Basin boundary Oregon. Area = 4310 Sq. Mi.

17100201-- NECANICUM. OREGON. Area = 129 Sq. Mi.
17100202-- NEHALEM. OREGON. Area = 860 Sq. Mi.
17100203-- WILSON-TRASK-NESTUCCA. OREGON. Area = 973 Sq. Mi.
17100204-- SILETZ-YAQUINA. OREGON. Area = 753 Sq. Mi.
17100205-- ALSEA. OREGON. Area = 697 Sq. Mi.
17100206-- SIUSLAW. OREGON. Area = 769 Sq. Mi.
17100207-- SILTCOOS. OREGON Area = 129 Sq. Mi.


Accounting Unit 171003 - Southern Oregon Coastal: The drainage into the Pacific Ocean from and including the Umpqua River Basin to the Smith River Basin boundary. California, Oregon. Area = 12600 Sq. Mi.

17100301-- NORTH UMPQUA. OREGON. Area = 1350 Sq. Mi.
17100302-- SOUTH UMPQUA. OREGON. Area = 1790 Sq. Mi.
17100303-- UMPQUA. OREGON. Area = 1500 Sq. Mi.
17100304-- COOS. OREGON. Area = 739 Sq. Mi.
17100305-- COQUILLE. OREGON. Area = 1030 Sq. Mi.
17100306-- SIXES. OREGON. Area = 467 Sq. Mi.
17100307-- UPPER ROGUE. OREGON. Area = 1610 Sq. Mi.
17100308-- MIDDLE ROGUE. OREGON. Area = 885 Sq. Mi.
17100309-- APPLEGATE. CALIFORNIA, OREGON. Area = 759 Sq. Mi.
17100310-- LOWER ROGUE. OREGON Area = 898 Sq. Mi.
17100311-- ILLINOIS. CALIFORNIA, OREGON. Area = 981 Sq. Mi.
17100312-- CHETCO. CALIFORNIA, OREGON. Area = 630 Sq. Mi.


Accounting Unit 170900 - Willamette. Oregon. Area = 11400 Sq. Mi.

17090001-- MIDDLE FORK WILLAMETTE. OREGON. Area = 1350 Sq. Mi.
17090002-- COAST FORK WILLAMETTE. OREGON. Area = 664 Sq. Mi.
17090003-- UPPER WILLAMETTE. OREGON. Area = 1830 Sq. Mi.
17090004-- MCKENZIE. OREGON. Area = 1360 Sq. Mi.
17090005-- NORTH SANTIAM. OREGON. Area = 771 Sq. Mi.
17090006-- SOUTH SANTIAM. OREGON. Area = 1050 Sq. Mi.
17090007-- MIDDLE WILLAMETTE. OREGON. Area = 700 Sq. Mi.
17090008-- YAMHILL. OREGON. Area = 770 Sq. Mi.
17090009-- MOLALLA-PUDDING. OREGON. Area = 883 Sq. Mi.
17090010-- TUALATIN. OREGON. Area = 718 Sq. Mi.
17090011-- CLACKAMAS. OREGON. Area = 935 Sq. Mi.
17090012-- LOWER WILLAMETTE. OREGON. Area = 407 Sq. Mi.


Accounting Unit 170703 - Deschutes River Basin. Oregon. Area = 10700 Sq. Mi.

17070301-- UPPER DESCHUTES. OREGON. Area = 2140 Sq. Mi.
17070302-- LITTLE DESCHUTES. OREGON. Area = 1020 Sq. Mi.
17070303-- BEAVER-SOUTH FORK. OREGON. Area = 1530 Sq. Mi.
17070304-- UPPER CROOKED. OREGON. Area = 1150 Sq. Mi.
17070305-- LOWER CROOKED. OREGON. Area = 1840 Sq. Mi.
17070306-- LOWER DESCHUTES. OREGON. Area = 2300 Sq. Mi.
17070307-- TROUT. OREGON. Area = 695 Sq. Mi.


Accounting Unit 171200 - Oregon Closed Basins. California, Nevada, Oregon. Area = 17300 Sq. Mi.

17120001-- HARNEY-MALHEUR LAKES. OREGON. Area = 1420 Sq. Mi.
17120002-- SILVIES. OREGON. Area = 1310 Sq. Mi.
17120003-- DONNER UND BLITZEN. OREGON. Area = 765 Sq. Mi.
17120004-- SILVER. OREGON. Area = 1670 Sq. Mi.
17120005-- SUMMER LAKE. OREGON. Area = 4100 Sq. Mi.
17120006-- LAKE ABERT. OREGON. Area = 1020 Sq. Mi.
17120007-- WARNER LAKES. CALIFORNIA, NEVADA, OREGON. Area = 1900 Sq. Mi.
17120008-- GUANO. NEVADA, OREGON. Area = 2970 Sq. Mi.
17120009-- ALVORD LAKE. NEVADA, OREGON. Area = 2110 Sq. Mi.


Accounting Unit 170501 - Middle Snake: Partial. Idaho, Nevada, Oregon.

17050103-- MIDDLE SNAKE-SUCCOR. IDAHO, OREGON. Area = 2280 Sq. Mi.
17050105-- SOUTH FORK OWYHEE. IDAHO, NEVADA,OREGON. Area = 1860 Sq. Mi.
17050106-- EAST LITTLE OWYHEE. IDAHO. NEVADA, OREGON. Area = 910 Sq. Mi.
17050107-- MIDDLE OWYHEE. IDAHO, NEVADA, OREGON.
17050108-- JORDAN. IDAHO, OREGON. Area = 1270 Sq. Mi.
17050109-- CROOKED-RATTLESNAKE. OREGON. Area = 1340 Sq. Mi.
17050110-- LOWER OWYHEE. OREGON. Area = 2000 Sq. Mi.
17050115-- MIDDLE SNAKE-PAYETTE. IDAHO, OREGON. Area = 294 Sq. Mi.
17050115-- MIDDLE SNAKE-PAYETTE. IDAHO, OREGON.
17050116-- UPPER MALHEUR. OREGON. Area = 2430 Sq. Mi.
17050117-- LOWER MALHEUR. OREGON. Area = 927 SQ.
17050118-- BULLY. OREGON. Area = 577 Sq. Mi.
17050119-- WILLOW. OREGON. Area = 773 Sq. Mi.


Accounting Unit 170702 - John Day. The John Day River Basin Area = 7910 Sq. Mi.

17070201-- UPPER JOHN DAY. OREGON. Area = 2130 Sq. Mi.
17070202-- NORTH FORK JOHN DAY. OREGON. Area = 1830 Sq. Mi.
17070203-- MIDDLE FORK JOHN DAY. OREGON. Area = 785 Sq. Mi.
17070204-- LOWER JOHN DAY. OREGON. Area = 3160 Sq. Mi.


Accounting Unit 170701 - Middle Columbia River Basin below the confluence with the Snake River Basin to Bonneville Dam. Oregon, Washington.

17070101-- MIDDLE COLUMBIA-LAKE WALLUA, OREGON, WASHINGTON. Area = 2550 Sq. Mi.
17070101-- MIDDLE COLUMBIA-LAKE WALLUA, OREGON, WASHINGTON.
17070101-- MIDDLE COLUMBIA-LAKE WALLUA, OREGON, WASHINGTON.
17070102-- WALLA WALLA. OREGON, WASHINGTON. Area = 1750 Sq. Mi.
17070103-- UMATILLA. OREGON. Area = 2540 Sq. Mi.
17070104-- WILLOW. OREGON. Area = 881 Sq. Mi.
17070105-- MIDDLE COLUMBIA-HOOD. OREGON, WASHINGTON. Area = 2170 Sq. Mi.
17070105-- MIDDLE COLUMBIA-HOOD. OREGON, WASHINGTON.


Accounting Unit 170601 - Lower Snake: The Snake River Basin below Hells Canyon Dam to its confluence with the Columbia River, excluding the Salmon and Clearwater River Basins. Idaho, Oregon, Washington. Partial.

17060101-- HELLS CANYON. IDAHO, OREGON. Area = 545 Sq. Mi.
17060102-- IMNAHA. OREGON. Area = 855 Sq. Mi.
17060103-- LOWER SNAKE-ASOTIN. IDAHO, OREGON, WASHINGTON. Area = 711 Sq. Mi.
17060104-- UPPER GRANDE RONDE. OREGON. Area = 1650 Sq. Mi.
17060105-- WALLOWA. OREGON. Area = 950 Sq. Mi.
17060106-- LOWER GRANDE RONDE. OREGON, WASHINGTON. Area = 1530 Sq. Mi.


Accounting Unit 170502 - Middle Snake-Powder: Snake River Basin below the Weisser River Basin to Hells Canyon Dam. Idaho, Oregon. Area = 4100 Sq. Mi.

17050201-- BROWNLEE RESERVOIR. IDAHO, OREGON. Area = 1290 Sq. Mi.
17050201-- BROWNLEE RESERVOIR. IDAHO, OREGON.
17050201-- BROWNLEE RESERVOIR. IDAHO, OREGON.
17050202-- BURNT. OREGON. Area = 1090 Sq. Mi.
17050203-- POWDER. OREGON. Area = 1720 Sq. Mi.


Accounting Unit 160402. - Black Root Desert and other closed Basins. California, Nevada, Oregon

16040201-- UPPER QUINN. NEVADA, OREGON. 3480 Sq. Mi.
16040205-- THOUSAND-VIRGIN. NEVADA, OREGON. 1150 Sq. Mi.


Accounting Unit 180200 -Drainage into Goose Lake.

18020001-- GOOSE LAKE. CALIFORNIA, OREGON. 1080 Sq. Mi.


Accounting Unit 180102 - Klamath. The Klamath River Basin. Partial.

18010201-- WILLIAMSON. OREGON. Area = 1430 Sq. Mi.
18010202-- SPRAGUE. OREGON. Area = 1600 Sq. Mi.
18010203-- UPPER KLAMATH LAKE. OREGON. Area = 738 Sq. Mi.
18010204-- LOST. CALIFORNIA, OREGON. Area = 2960 Sq. Mi.
18010205-- BUTTE. CALIFORNIA, OREGON. Area = 601 Sq. Mi.
18010206-- UPPER KLAMATH. CALIFORNIA, OREGON. Area = 1400 Sq. Mi.
18010209-- LOWER KLAMATH. CALIFORNIA, OREGON. Area = 1520 Sq. Mi.


Accounting Unit 180101 - Northern California Including the Smith River Basin. Partial.

18010101-- SMITH. CALIFORNIA, OREGON. Area = 788 Sq. Mi.


[ Back to the Data Program Page ]
Last modified: Wed Dec 18 07:25:08 1996