Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| North Fork Barron Creek | Stream | | Jackson | 42 07 04 N | 122 36 54 W |
| North Fork Basin Creek | Stream | | Wallowa | 45 39 03 N | 116 49 02 W |
| North Fork Bean Creek | Stream | | Jefferson | 44 37 19 N | 121 32 09 W |
| North Fork Bear Creek | Stream | | Crook | 44 32 54 N | 120 26 50 W |
| North Fork Beaver Creek | Stream | | Crook | 44 10 21 N | 119 45 46 W |
| North Fork Beaver Creek | Stream | | Lincoln | 44 30 35 N | 124 00 46 W |
| North Fork Beaver Creek | Stream | | Multnomah | 45 29 44 N | 122 21 59 W |
| North Fork Berry Creek | Stream | | Benton | 44 42 56 N | 123 18 07 W |
| North Fork Bieberstedt Creek | Stream | | Jackson | 42 27 35 N | 122 28 07 W |
| North Fork Big Butte Creek | Stream | | Jackson | 42 33 30 N | 122 34 38 W |
| North Fork Big Sheep Creek | Stream | | Wallowa | 45 10 41 N | 117 07 10 W |
| North Fork Bottom Creek | Stream | | Douglas | 43 21 44 N | 123 44 30 W |
| North Fork Boulder Creek | Stream | | Jefferson | 44 48 52 N | 121 34 34 W |
| North Fork Boulder Creek | Stream | | Lane | 44 13 11 N | 122 00 16 W |
| North Fork Breitenbush River | Stream | | Marion | 44 46 47 N | 121 57 53 W |
| North Fork Bridge Creek | Stream | | Grant | 44 32 11 N | 118 33 40 W |
| North Fork Bridge Creek | Stream | | Umatilla | 45 02 52 N | 118 53 46 W |
| North Fork Brownie Creek | Stream | | Lane | 43 34 29 N | 122 52 56 W |
| North Fork Buck Creek | Stream | | Lane | 43 34 29 N | 122 23 13 W |
| North Fork Buck Creek | Stream | | Linn | 44 35 59 N | 122 01 41 W |
| North Fork Bull Run River | Stream | | Multnomah | 45 29 38 N | 122 02 06 W |
| North Fork Bully Creek | Stream | | Malheur | 44 02 27 N | 117 49 45 W |
| North Fork Burnt River | Stream | | Baker | 44 31 42 N | 118 12 17 W |
| North Fork Butte Creek | Stream | | Gilliam | 45 03 33 N | 120 19 54 W |
| North Fork Byron Creek | Stream | | Douglas | 43 01 44 N | 123 31 14 W |
| North Fork Cabin Creek | Stream | | Union | 45 41 32 N | 117 53 37 W |
| North Fork Cable Creek | Stream | | Umatilla | 45 04 58 N | 118 45 31 W |
| North Fork Calapooia River | Stream | | Linn | 44 14 04 N | 122 25 01 W |
| North Fork Calapooya Creek | Stream | | Douglas | 43 28 50 N | 123 01 56 W |
| North Fork Cape Creek | Stream | | Lane | 44 08 30 N | 124 03 27 W |
| North Fork Carrol Creek | Stream | | Wallowa | 45 17 45 N | 116 59 20 W |
| North Fork Cascade Creek | Stream | | Lincoln | 44 19 14 N | 123 52 03 W |
| North Fork Castle Creek | Stream | | Klamath | 42 56 18 N | 122 15 04 W |
| North Fork Catherine Creek | Stream | | Union | 45 07 12 N | 117 38 49 W |
| North Fork Catherine Creek Recreation Site | Locale | 1292 | Union | 45 08 56 N | 117 37 03 W |
| North Fork Cedar Creek | Stream | | Lane | 43 27 03 N | 122 37 22 W |
| North Fork Cedar Creek | Stream | | Marion | 44 55 54 N | 122 35 44 W |
| North Fork Cedar Creek | Stream | | Wasco | 44 54 20 N | 121 36 52 W |
| North Fork Cherry Creek | Stream | | Coos | 43 13 04 N | 123 56 19 W |
| North Fork Chetco River | Stream | | Curry | 42 04 24 N | 124 12 40 W |
| North Fork Chilcoot Creek | Stream | | Lane | 43 27 32 N | 122 44 08 W |
| North Fork Chocktoot Creek | Stream | | Lake | 42 48 35 N | 121 01 01 W |
| North Fork Clackamas River | Stream | | Clackamas | 45 13 56 N | 122 15 16 W |
| North Fork Clark Creek | Stream | | Jackson | 42 37 56 N | 122 35 49 W |
| North Fork Clark Creek | Stream | | Union | 45 30 58 N | 117 49 46 W |
| North Fork Clarks Fork Creek | Stream | | Jackson | 42 31 15 N | 122 25 20 W |
| North Fork Clatskanie River | Stream | | Columbia | 46 02 37 N | 123 04 59 W |
| North Fork Cliff Creek | Stream | | Wallowa | 45 48 46 N | 117 11 59 W |
| North Fork Cogswell Creek | Stream | | Lake | 42 04 13 N | 120 17 60 W |
| North Fork Cold Spring Creek | Stream | | Hood River | 45 22 50 N | 121 35 47 W |
| North Fork Cold Springs Canyon | Valley | | Umatilla | 45 52 22 N | 118 55 58 W |
| North Fork Collier Creek | Stream | | Curry | 42 24 20 N | 124 01 40 W |
| North Fork Cook Creek | Stream | | Linn | 44 16 09 N | 122 14 39 W |
| North Fork Copeland Creek | Stream | | Klamath | 42 57 21 N | 122 15 19 W |
| North Fork Coquille River | Stream | | Coos | 43 04 49 N | 124 08 29 W |
| North Fork Corral Creek | Stream | | Clackamas | 45 18 09 N | 122 50 27 W |
| North Fork Cottonwood Creek | Stream | | Umatilla | 45 59 46 N | 118 14 44 W |
| North Fork County Park | Park | 219 | Marion | 44 47 49 N | 122 33 54 W |
| North Fork Cow Camp | Locale | 1500 | Grant | 44 14 43 N | 118 23 12 W |
| North Fork Cox Creek | Stream | | Lake | 42 23 02 N | 120 23 54 W |
| North Fork Crane Creek | Stream | | Lake | 42 06 55 N | 120 15 48 W |
| North Fork Creek | Stream | | Coos | 43 15 29 N | 124 01 14 W |
| North Fork Cronin Creek | Stream | | Clatsop | 45 46 15 N | 123 37 26 W |
| North Fork Crooked Creek | Stream | | Lake | 42 19 47 N | 120 11 46 W |
| North Fork Crooked River | Stream | | Crook | 44 07 01 N | 120 14 43 W |
| North Fork Crossing Forest Camp | Locale | 662 | Clackamas | 45 12 34 N | 122 09 14 W |
| North Fork Crystal Creek | Stream | | Curry | 42 50 29 N | 124 26 44 W |
| North Fork Dahl Creek | Stream | | Lane | 43 36 37 N | 122 51 19 W |
| North Fork Daly Creek | Stream | | Baker | 44 39 53 N | 117 11 08 W |
| North Fork Dam | Dam | 186 | Benton | 44 31 34 N | 123 29 39 W |
| North Fork Dam | Dam | 237 | Clackamas | 45 14 29 N | 122 16 58 W |
| North Fork Dam | Dam | 918 | Multnomah | 45 33 05 N | 122 00 22 W |
| North Fork Darby Creek | Stream | | Douglas | 42 51 59 N | 123 37 40 W |
| North Fork Deadwood Creek | Stream | | Harney | 43 51 30 N | 119 12 58 W |
| North Fork Deardorff Creek | Stream | | Grant | 44 22 06 N | 118 27 03 W |
| North Fork Deep Creek | Stream | | Clackamas | 45 23 35 N | 122 24 39 W |
| North Fork Deep Creek | Stream | | Lake | 42 03 23 N | 120 10 44 W |
| North Fork Deer Creek | Stream | | Douglas | 43 12 07 N | 123 14 31 W |
| North Fork Deer Creek | Stream | | Grant | 44 10 59 N | 119 20 11 W |
| North Fork Deer Creek | Stream | | Josephine | 42 15 57 N | 123 27 03 W |
| North Fork DeGarmo Canyon | Valley | | Lake | 42 29 20 N | 119 46 11 W |
| North Fork Desolation Creek | Stream | | Grant | 44 49 11 N | 118 41 18 W |
| North Fork Diamond Creek | Stream | | Curry | 41 58 38 N | 123 54 27 W |
| North Fork Dismal Creek | Stream | | Douglas | 42 48 09 N | 123 03 04 W |
| North Fork Ditch | Canal | 1367 | Klamath | 42 27 40 N | 121 02 54 W |
| North Fork Diversion Dam | Dam | 803 | Jackson | 42 46 29 N | 122 29 58 W |
| North Fork Diversion Reservoir | Reservoir | 803 | Jackson | 42 46 29 N | 122 29 58 W |
| North Fork Dixie Creek | Stream | | Baker | 44 26 58 N | 117 27 03 W |
| North Fork Drift Creek | Stream | | Lincoln | 44 28 21 N | 123 47 27 W |
| North Fork Dry Creek | Stream | | Curry | 42 46 14 N | 124 22 04 W |
| North Fork Dry Creek | Stream | | Wallowa | 45 08 17 N | 116 51 58 W |
| North Fork Dunn Creek | Stream | | Josephine | 41 59 16 N | 123 36 01 W |
| North Fork Durham Creek | Stream | | Wallowa | 45 36 07 N | 116 29 15 W |
| North Fork Eagle Creek | Stream | | Clackamas | 45 19 30 N | 122 17 20 W |
| North Fork East Fork Rock Creek | Stream | | Douglas | 43 23 55 N | 122 52 08 W |
| North Fork Ecola Creek | Stream | | Clatsop | 45 53 21 N | 123 56 49 W |
| North Fork Elk Creek | Stream | | Coos | 42 48 47 N | 124 00 33 W |
| North Fork Elk Creek | Stream | | Grant | 44 14 41 N | 118 24 31 W |
| North Fork Elk Creek | Stream | | Grant | 44 43 01 N | 118 46 25 W |
| North Fork Elk River | Stream | | Curry | 42 43 00 N | 124 12 17 W |
| North Fork Elkhorn Creek | Stream | | Lincoln | 44 30 38 N | 124 00 34 W |
| North Fork Fall Creek | Stream | | Lane | 43 58 12 N | 122 38 13 W |
| North Fork Falls | Falls | 101 | Clatsop | 45 48 39 N | 123 44 59 W |
| North Fork Falls | Falls | 294 | Douglas | 43 55 56 N | 123 49 03 W |
| North Fork Fish Creek | Stream | | Lane | 44 08 31 N | 123 33 28 W |
| North Fork Fishhawk Creek | Stream | | Columbia | 46 03 59 N | 123 20 24 W |
| North Fork Fivemile Creek | Stream | | Wasco | 45 29 17 N | 121 17 38 W |
| North Fork Floras Creek | Stream | | Curry | 42 54 30 N | 124 19 18 W |
| North Fork Foster Creek | Stream | | Curry | 42 38 44 N | 124 04 14 W |
| North Fork Fourbit Creek | Stream | | Jackson | 42 30 26 N | 122 22 24 W |