| '85 (Lower) | | Tualatin Mountain Forest (Rocky Point Trails) | Portland | OR | mtb | mtb |
| '85 (Upper) | | Tualatin Mountain Forest (Rocky Point Trails) | Portland | OR | mtb | mtb |
| Access Path | | Newell Creek Canyon Nature Park | Portland | OR | | |
| Access Rd BDR 2 RCR | | Tillamook State Forest | Tillamook | OR | | |
| Access Rd BOL | | Tillamook State Forest | Tillamook | OR | | |
| Access Rd BP | | Tillamook State Forest | Tillamook | OR | | |
| Access Rd FBO | | Tillamook State Forest | Tillamook | OR | | |
| Access Rd Mi1.1 | | Tillamook State Forest | Tillamook | OR | | |
| Access Rd Q1 | | Tillamook State Forest | Tillamook | OR | | |
| Access Rd RC | | Tillamook State Forest | Tillamook | OR | | |
| Access Rd RCR2 | | Tillamook State Forest | Tillamook | OR | | |
| Access Rd Si1 | | Tillamook State Forest | Tillamook | OR | | |
| Access Rd Si2 | | Tillamook State Forest | Tillamook | OR | | |
| Access Rd Si3 | | Tillamook State Forest | Tillamook | OR | | |
| Access Rd Si4 | | Tillamook State Forest | Tillamook | OR | | |
| Access Road | | Tillamook State Forest | Tillamook | OR | | |
| Access Road | | Tillamook State Forest | Tillamook | OR | | |
| Access to Sad Birthday | | Tualatin Mountain Forest (Rocky Point Trails) | Portland | OR | mtb | mtb |
| Access Trail | | Molalla River State Park | Canby | OR | hike | hike |
| Alder Trail | | Forest Park | Portland | OR | | |
| Ascension Trail | | Beaverton | Beaverton | OR | | |
| Ash Loop | | Tualatin Hills Nature Park | Beaverton | OR | hike | hike |
| Axolotl | | Tualatin Mountain Forest (Rocky Point Trails) | Portland | OR | mtb | mtb |
| Ayeekwa Trail | | Chehalem Ridge Nature Park | Gaston | OR | | |
| Bailing Wire Junction | | LL Stub Stewart State Park | Banks | OR | mtb | mtb |
| Banks - Vernonia State Trail | | Banks-Vernonia Trail | Portland | OR | mtb | mtb |
| Banks-Vernonia State Trail | | Vernonia | Vernonia | OR | | |
| Barberchair Trail | | LL Stub Stewart State Park | Banks | OR | mtb | mtb |
| Barrow Pond Path | | Beaverton | Beaverton | OR | | |
| Barrows Park Path | | Beaverton | Beaverton | OR | | |
| Barrows Park Powerline Path | | Beaverton | Beaverton | OR | | |
| Barrows Westside Park Path | | Beaverton | Beaverton | OR | | |
| Beaver Dam Road | | Tillamook State Forest | Tillamook | OR | | |
| Beaver Dam Road Connector | | Tillamook State Forest | Tillamook | OR | | |
| Beaverton Wetlands Trail | | Beaverton | Beaverton | OR | | |
| Bernert Landing Trail | | West Linn | West Linn | OR | | |
| Bethany Lake Path | | Hillsboro | Hillsboro | OR | | |
| Bethany Meadows Path | | Bethany | Bethany | OR | | |
| Bethany Meadows Terrance Trail | | Bethany | Bethany | OR | | |
| Big Fir Trail | | Tualatin Hills Nature Park | Beaverton | OR | hike | hike |
| Birch Trail | | Forest Park | Portland | OR | | |
| Blacktail Way | | Cooper Mountain Nature Park | Beaverton | OR | | |
| Blockbuster Trail | | Tillamook State Forest | Tillamook | OR | | |
| Bmc | | Tillamook State Forest | Tillamook | OR | moto | moto |
| Bob's Alternative Entrance | | Tualatin Mountain Forest (Rocky Point Trails) | Portland | OR | mtb | mtb |
| Bob's Alternative Exit | | Tualatin Mountain Forest (Rocky Point Trails) | Portland | OR | mtb | mtb |
| Bob's Connector | | Tualatin Mountain Forest (Rocky Point Trails) | Portland | OR | mtb | mtb |
| Bob's Yer Uncle (lower) | | Tualatin Mountain Forest (Rocky Point Trails) | Portland | OR | mtb | mtb |
| Bob's Yer Uncle (mid) | | Tualatin Mountain Forest (Rocky Point Trails) | Portland | OR | mtb | mtb |
| Bob's Yer Uncle (upper) | | Tualatin Mountain Forest (Rocky Point Trails) | Portland | OR | mtb | mtb |
| Boomscooter Trail | | LL Stub Stewart State Park | Banks | OR | mtb | mtb |
| BPA Road | | Forest Park | Portland | OR | | |
| Brach off Mid Road At Top of Mulligan | | Tualatin Mountain Forest (Rocky Point Trails) | Portland | OR | mtb | mtb |
| Brooke Creek | | LL Stub Stewart State Park | Banks | OR | | |
| Browns Camp OHV Staging Area Access | | Tillamook State Forest | Tillamook | OR | | |
| Browns Powerline #6 | | Tillamook State Forest | Tillamook | OR | | |
| Bull Mountain Powerlines Trail | | Beaverton | Beaverton | OR | mtb | mtb |
| Bull Mountain Trail 1 | | Bull Mountain Park | Tigard | OR | mtb | mtb |
| Bull Mountain Trail 2 | | Bull Mountain Park | Tigard | OR | mtb | mtb |
| Bull Mountain trail 3 | | Bull Mountain Park | Tigard | OR | mtb | mtb |
| Bull Mountain Trail 4 | | Bull Mountain Park | Tigard | OR | mtb | mtb |
| Bull Mountain Trail 5 | | Bull Mountain Park | Tigard | OR | mtb | mtb |
| Bullbucker | | LL Stub Stewart State Park | Banks | OR | mtb | mtb |
| Burntwood Park Path | | Beaverton | Beaverton | OR | | |
| Burntwood Park Path | | Beaverton | Beaverton | OR | | |
| Cach Park Main Trail and Skills Area | | Beaverton | Beaverton | OR | mtb | mtb |
| Camas Springs | | Canemah Bluff Nature Park | Oregon City | OR | | |
| Camassia Trail | | Wilderness Park / Camassia Natural Area | West Linn | OR | hike | hike |
| Camassia Trail | | Wilderness Park / Camassia Natural Area | West Linn | OR | hike | hike |
| Cambridge-Waterhouse Path | | Beaverton | Beaverton | OR | | |
| Canemah Children's Park | | Canemah Bluff Nature Park | Oregon City | OR | | |
| Canemah Gravel | | West Linn | West Linn | OR | | |
| Canyon Spring Loop | | Newell Creek Canyon Nature Park | Portland | OR | hike | hike |
| Canyon Spring Loop Access | | Newell Creek Canyon Nature Park | Portland | OR | hike | hike |
| Castor Trail | | Chehalem Ridge Nature Park | Gaston | OR | | |
| Catlin Mini Jump Line | | Multnomah County | Beaverton | OR | mtb | mtb |
| Catlin to 90th | | Multnomah County | Beaverton | OR | | |
| Cedar Grove Trail | | Newell Creek Canyon Nature Park | Portland | OR | | |
| Cedar Island Trail | | Mary S. Young State Recreation Area | West Linn | OR | | |
| Cedar Island Trail | | Mary S. Young State Recreation Area | West Linn | OR | | |
| Cedar Road | | Tillamook State Forest | Tillamook | OR | | |
| Cedar Road A1 | | Tillamook State Forest | Tillamook | OR | | |
| Cemetery Road | | Canemah Bluff Nature Park | Oregon City | OR | | |
| Champoeg Bike Path | | Champoeg State Heritage Area | St. Paul | OR | | |
| Chehalem Ridge | | Chehalem Ridge Nature Park | Gaston | OR | | |
| Chestnut Trail | | Forest Park | Portland | OR | | |
| Chickadee Loop | | Tualatin Hills Nature Park | Beaverton | OR | hike | hike |
| Church Jumps | | Beaverton | Beaverton | OR | mtb | mtb |
| Clackamette Cove Trail | | Oregon City | Oregon City | OR | | |
| Clark Street Trail | | Wilderness Park / Camassia Natural Area | West Linn | OR | | |
| Cleator Trail | | Forest Park | Portland | OR | hike | hike |
| Climb Trail | | Lake Oswego | Lake Oswego | OR | mtb | mtb |
| Clydes #7 | | Tillamook State Forest | Tillamook | OR | | |
| Collins North Trail | | Pittock Bird Sanctuary | Portland | OR | hike | hike |
| Collins South Trail | | Pittock Bird Sanctuary | Portland | OR | hike | hike |
| Collins Trail | | Pittock Bird Sanctuary | Portland | OR | hike | hike |
| Connector | | Jackson Bottom Wetlands Preserve | Hillsboro | OR | hike | hike |
| Connector | | Wilderness Park / Camassia Natural Area | West Linn | OR | | |
| Connector | | LL Stub Stewart State Park | Banks | OR | mtb | mtb |
| Connector Path | | Tigard | Tigard | OR | mtb | mtb |
| Connector to Rise and Shine | | LL Stub Stewart State Park | Banks | OR | mtb | mtb |
| Cook Park Trail #1 | | Cook Park | Tualatin | OR | mtb | mtb |
| Cook Park Trail #2 | | Cook Park | Tualatin | OR | mtb | mtb |
| Cooks Butte Loop | | Cooke's Butte Park | Lake Oswego | OR | hike | hike |
| Cooks Butte Trail 1 | | Cooke's Butte Park | Lake Oswego | OR | mtb | mtb |
| Cooks Butte Trail 2 | | Cooke's Butte Park | Lake Oswego | OR | mtb | mtb |
| Cooks Butte Trail 3 | | Cooke's Butte Park | Lake Oswego | OR | mtb | mtb |
| Cooper Mountain Loop | | Cooper Mountain Nature Park | Beaverton | OR | | |
| Cooper Mountain Perimeter | | Cooper Mountain Nature Park | Beaverton | OR | hike | hike |
| Coyote Hill Seasonal Trail | | Jackson Bottom Wetlands Preserve | Hillsboro | OR | hike | hike |
| Coyote Way | | Graham Oaks Nature Park | Wilsonville | OR | hike | hike |
| Crazy Train | | LL Stub Stewart State Park | Banks | OR | mtb | mtb |
| Crooked Bridge #3 | | Tillamook State Forest | Tillamook | OR | | |
| Crooked Bridge A1 #3 | | Tillamook State Forest | Tillamook | OR | moto | moto |
| Crooked Bridge A2 | | Tillamook State Forest | Tillamook | OR | | |
| Crooked Bridge B1 #3 | | Tillamook State Forest | Tillamook | OR | | |
| Crosstie | | LL Stub Stewart State Park | Banks | OR | mtb | mtb |
| Crown Zellerbach Trail | | Northwest Oregon | Scappoose | OR | mtb | mtb |
| Crystal Springs Trail | | Bethany | Bethany | OR | | |
| Cumberland Trail | | Forest Park | Portland | OR | hike | hike |
| David Hill Trail | | Forest Grove | Forest Grove | OR | | |
| Deer Foot Trail | | Mary S. Young State Recreation Area | West Linn | OR | | |
| Defibrilator | | Tigard | Tigard | OR | mtb | mtb |
| Defibrilator Climbing Route | | Tigard | Tigard | OR | mtb | mtb |
| Devils Lake Fork Road | | Tillamook State Forest | Tillamook | OR | | |
| Devils Lake Spur | | Tillamook State Forest | Tillamook | OR | | |
| Dirksen Nature Park Trail | | Beaverton | Beaverton | OR | mtb | mtb |
| Dogwood Trail | | Forest Park | Portland | OR | | |
| Dreamcatcher | | Tigard | Tigard | OR | mtb | mtb |
| Drip Torch | | LL Stub Stewart State Park | Banks | OR | mtb | mtb |
| Drip Torch Push Up Connector | | LL Stub Stewart State Park | Banks | OR | mtb | mtb |
| Elliot Path | | Tualatin Hills Nature Park | Beaverton | OR | hike | hike |
| Ernie's Journey | | Tualatin Mountain Forest (Rocky Point Trails) | Portland | OR | mtb | mtb |
| Fanno Creek Trail | | Cook Park | Tualatin | OR | hike | hike |
| Fanno Creek Trail | | Cook Park | Tualatin | OR | hike | hike |
| Fanno Creek Trail | | Cook Park | Tualatin | OR | hike | hike |
| Fanno Creek Trail | | Cook Park | Tualatin | OR | hike | hike |
| Fanno Creek, 105th Ave to Oleson Rd | | Bull Mountain Park | Tigard | OR | mtb | mtb |
| Fanno Creek, Johnson St to Denney Rd | | Bull Mountain Park | Tigard | OR | mtb | mtb |
| Fanno Creek/Colony creek, Grant Ave to Fanno Creek Dr | | Bull Mountain Park | Tigard | OR | mtb | mtb |
| Fellings Wedge | | LL Stub Stewart State Park | Banks | OR | mtb | mtb |
| Fern Connector | | Canemah Bluff Nature Park | Oregon City | OR | hike | hike |
| Fern Trail | | Mary S. Young State Recreation Area | West Linn | OR | | |
| Fern Trail | | Mary S. Young State Recreation Area | West Linn | OR | | |
| Field Trail | | Champoeg State Heritage Area | St. Paul | OR | hike | hike |
| Fire Break One Road | | Tillamook State Forest | Tillamook | OR | | |
| Firebreak One #2 | | Tillamook State Forest | Tillamook | OR | | |
| Firelane 1 | | Forest Park | Portland | OR | | |
| Firelane 1 | | Forest Park | Portland | OR | | |
| Firelane 10 | | Forest Park | Portland | OR | | |
| Firelane 12 | | Forest Park | Portland | OR | | |
| Firelane 2 | | Forest Park | Portland | OR | | |
| Firelane 3 | | Forest Park | Portland | OR | | |
| Firelane 4 | | Forest Park | Portland | OR | | |
| Firelane 5 | | Forest Park | Portland | OR | | |
| Forbidden Forest | | Tigard | Tigard | OR | mtb | mtb |
| Founders Trail | | Forest Park | Portland | OR | hike | hike |
| Free Dirt | | Tualatin Mountain Forest (Rocky Point Trails) | Portland | OR | mtb | mtb |
| Frog Pond Trail | | Canemah Bluff Nature Park | Oregon City | OR | | |
| Ghosts | | Tualatin Mountain Forest (Rocky Point Trails) | Portland | OR | | |
| Gone In 30 Seconds | | Cooke's Butte Park | Lake Oswego | OR | mtb | mtb |
| Gravel Connector | | Tualatin Mountain Forest (Rocky Point Trails) | Portland | OR | mtb | mtb |
| Gravel from Deep South | | Tualatin Mountain Forest (Rocky Point Trails) | Portland | OR | mtb | mtb |
| Gravel off Skyline | | Tualatin Mountain Forest (Rocky Point Trails) | Portland | OR | mtb | mtb |
| Gravel to Golf Course | | Tualatin Mountain Forest (Rocky Point Trails) | Portland | OR | mtb | mtb |
| Gravel to View Point | | Tualatin Mountain Forest (Rocky Point Trails) | Portland | OR | mtb | mtb |
| Greenhorn | | Tigard | Tigard | OR | mtb | mtb |
| Gritty Kitty | | Tualatin Mountain Forest (Rocky Point Trails) | Portland | OR | mtb | mtb |
| Guadalupe Loop | | Yamhill County | | OR | hike | hike |
| Hanky Panky | | Tualatin Mountain Forest (Rocky Point Trails) | Portland | OR | mtb | mtb |
| Hardesty Trail | | Forest Park | Portland | OR | | |
| Hares Canyon | | LL Stub Stewart State Park | Banks | OR | mtb | mtb |
| HDW access | | Tualatin Mountain Forest (Rocky Point Trails) | Portland | OR | mtb | mtb |
| HDW access lower | | Tualatin Mountain Forest (Rocky Point Trails) | Portland | OR | mtb | mtb |
| Heartwood | | LL Stub Stewart State Park | Banks | OR | | |
| Heartwood | | LL Stub Stewart State Park | Banks | OR | | |
| Heavy Nettle | | Newell Creek Canyon Nature Park | Portland | OR | mtb | mtb |
| Henry Hagg Lake Trail | | Henry Hagg Lake | Forest Grove | OR | | |
| Heron Creek Loop Trail | | Mary S. Young State Recreation Area | West Linn | OR | | |
| Highline (mid) | | Tualatin Mountain Forest (Rocky Point Trails) | Portland | OR | mtb | mtb |
| Highline (north) | | Tualatin Mountain Forest (Rocky Point Trails) | Portland | OR | mtb | mtb |
| Highline / BLM Lake Access | | Tualatin Mountain Forest (Rocky Point Trails) | Portland | OR | mtb | mtb |
| Highline Fireroad Connector | | Tualatin Mountain Forest (Rocky Point Trails) | Portland | OR | mtb | mtb |
| Highway 47 Trail | | Gales Creek | Forest Grove | OR | hike | hike |
| Hillsdale to Lake Oswego Trail | | Tryon Creek State Natural Area | Lake Oswego | OR | | |
| Hollie's PoV & Bumping Knots | | LL Stub Stewart State Park | Banks | OR | mtb | mtb |
| Hollie's PoV & Bumping Knots Loop | | LL Stub Stewart State Park | Banks | OR | mtb | mtb |
| Holman Lane | | Forest Park | Portland | OR | | |
| Hooktender Horseshoe | | LL Stub Stewart State Park | Banks | OR | hike | hike |
| Hooktender Horseshoe | | LL Stub Stewart State Park | Banks | OR | hike | hike |
| Hot Dog Water | | Tualatin Mountain Forest (Rocky Point Trails) | Portland | OR | mtb | mtb |
| Hyland Forest Park Loop Trail | | Beaverton | Beaverton | OR | mtb | mtb |
| Ill-Tempered Gnome (North) | | Tualatin Mountain Forest (Rocky Point Trails) | Portland | OR | mtb | mtb |
| Ill-Tempered Gnome (south) | | Tualatin Mountain Forest (Rocky Point Trails) | Portland | OR | mtb | mtb |
| Iron Mountain Connector Trail | | Lake Oswego | Lake Oswego | OR | mtb | mtb |
| Iron Mountain Trail | | Lake Oswego | Lake Oswego | OR | mtb | mtb |
| Jackson Bottom Wetlands Trail | | Jackson Bottom Wetlands Preserve | Hillsboro | OR | hike | hike |
| Jackson School Woods | | Hillsboro | Hillsboro | OR | | |
| Jackstrawed Terry | | LL Stub Stewart State Park | Banks | OR | mtb | mtb |
| Japenese Garden Trail | | Forest Park | Portland | OR | hike | hike |
