Map of OWRC Regions
OWRC Regions by Basin
| Region 1: | North Coast, Mid Coast and Willamette Valley Basins |
| Region 2: | Rogue, Umpqua and South Coast Basins |
| Region 3: | Klamath, and Goose & Summer Lakes Basins |
| Region 4: | Deschutes Basin |
| Region 5: | Hood and Sandy Basins |
| Region 6: | Umatilla, John Day and Walla Walla Basins |
| Region 7: | Powder and Grande Ronde Basins |
| Region 8: | Malheur, Malheur Lake and Owyhee Basins |