Palmer Mill+Brower Roads

Gravel route from Palmer Mill Rd to NE Brower Rd, Corbett, Multnomah County, Oregon

"Brower Road is rutted and potholes, but is otherwise a fairly ordinary 1-lane gravel road. Palmer Mill, on the other hand, is rutted, washboarded, potholed, and relentlessly insanely steep (~12-20% grades for the first 350 meters.) It's about as scenic as you can get; if you have any spare energy climbing the views, despite being tree-cluttered, are breathtaking. I'd suggest not looking at the scenery if you're descending, because the potholes/washboarding/ruts /will/ claim their sacrifice."

De Jong Rd to W Perrydale Rd

Gravel route from De Jong Rd to W Perrydale Rd, Amity, Polk County, Oregon

"Well maintained two lanes, narrowing to 1.5 lanes at the south end of De Jong Rd"

Cullen Rd

Gravel route from NE Chehalem Dr to NE Cullen Rd, Newberg, Yamhill County, Oregon

"1.5 lanes of variable quality; some washboarding & potholes at the turn and in the valleys"

The gravel section NW Pumpkin Ridge Rd

Gravel route on NW Pumpkin Ridge Rd, North Plains, Washington County, Oregon

"Well kept gravel rollers with a few steep ramps thrown in"

Smoke Ranch Rd to NW Smoke Ranch Rd

Gravel route from Smoke Ranch Rd to NW Smoke Ranch Rd, Scappoose, Washington County, Oregon

"Rollery gravel on the west end, mud+fine gravel on the east end (a gated logging road)"

NW Vadis Rd

Gravel route on NW Vadis Rd, Cornelius, Washington County, Oregon

"Vadis Road is improved everywhere except for this short section that goes by a sawmill. This section is rutted, washboarded, and comes with a bonus sketchy railroad crossing."

NW Harrington Rd

Gravel route on NW Harrington Rd, Cornelius, Washington County, Oregon

Milne Rd

Gravel route on Milne Rd, Cornelius, Washington County, Oregon

"Rutted gravel with potholes & washboarding at the south end"

Brooklyn Rd to Smith Creek Rd

Gravel route from Brooklyn Rd to Smith Creek Rd, Raymond, Pacific County, Washington

"Gravel logging roads with 10km of pavement in the middle. The flat parts of it are paved, the hilly parts are gravel."

Crown Zellerbach Road

Other route from Crown Zellerbach Logging Rd to Nehalem Hwy N, Vernonia, Columbia County, Oregon

"Mixed; a tiny bit paved, a lot of gravel, a lot of dirt, some doubletrack. Mainly flattish (the part that's an ex-railroad grade) but with steep ramps up to the Nehalem Divide."

Dixie Mountain Rd (north)/Otto Miller

Gravel route from Dixie Mountain Rd to Otto Miller Rd, Scappoose, Columbia County, Oregon

"Mix of packed and loose gravel, depending on when the county road crews have been through. Otto Miller is steep, Dixie Mountain rolls"

Dixie Mountain Road (south side)

Gravel route from NW Collins Rd to Dixie Mountain Rd, Scappoose, Washington County, Oregon

"Mix of packed and loose gravel, depending on when the county road crews have been through"

SW Hook & Eye Road

Gravel route from SW Briedwell Rd to SW Hook and Eye Ln, McMinnville, Yamhill County, Oregon

"Flat (parallels a railroad line) tertiary road; well packed, some potholes"

Bethel Rd

Gravel route from Bethel Rd to Bethel Rd, Salem, Polk County, Oregon

"Hilly farm road; watch out for sharp-edged gravel chunks"

Foss Rd

Dirt route from Foss Rd to Lost Lake Rd, Seaside, Clatsop County, Oregon

"Some parts of Foss Road are maintained gravel, some parts of Foss Road are disintegrating asphalt, some parts of Foss Road are just plain dirt painted up and down the bluffside, and there are few small sections of maintained asphalt where homeowners want to cut down on the dust in front of their houses."

S Schooner Creek Rd

Gravel route from S Schooner Creek Rd to NF-17, Otis, Lincoln County, Oregon

"Schooner Creek Road is a steady mild climb on a packed dirt/gravel one-lane road; Bear Creek Road is a steep climb on a ploughed/oiled gravel 1.5 lane road."

Country Rd 410

Gravel route on State Hwy 411, Blodgett, Lincoln County, Oregon

"The west end of the road is packed dirt/gravel; the east end is loose sunbaked gravel."

Hoskins Rd

Gravel route on Hoskins Rd, Blodgett, Benton County, Oregon

"Logging/rural road; well kept with very few drifted areas."

SE Malden Dr

Gravel route on SE Malden Dr, Portland, Multnomah County, Oregon

"Rutted and potholed into near oblivion, but still ridable."

SE Tenino Dr

Gravel route from SE Tenino Dr to SE 52nd Ave, Portland, Multnomah County, Oregon

"Rutted and potholed into near oblivion, but still ridable."

NF-5860

Gravel route from NF-58 to NF-5860, Clackamas County, Oregon

"Paved with fine gravel."

NF-5820

Gravel route from NF-5810 to NF-5890, Clackamas County, Oregon

"Paved with fine gravel."

Cazadero Trail

Gravel route from Cazadero Trail to Cazadero Trail, Boring, Clackamas County, Oregon

"Railroad grade, so flat. it's a dedicated trail, so the gravel is settling slowly. There's a break in the middle of the trail right now (a bridge needs to be replaced) so there's a 500 meter detour onto highway 224"

Eagle Crest Rd NW

Gravel route on Eagle Crest Rd NW, Salem, Polk County, Oregon

"Steep & muddy"

Le Brun Rd NE

Gravel route from Butteville Rd NE to Le Brun Rd NE, Woodburn, Marion County, Oregon

"Unpaved farm access road; not enough traffic to flatten the gravel out, so it's loose and drifted. The railroad crossing ~1000 meters from the east end of Le Brun has the rails standing proud of the road so they're a hell of a bump if you're not paying attention when you reach them."

Pipeline Rd

Gravel route on Pipeline Rd, Estacada, Clackamas County, Oregon

"The hydroelectric pipeline service road. Well kept, and /basically/ flat except for a terrifyingly steep switchbacked descent down into Three Lynx"

NE Alex Barr Rd

Gravel route from E Haines Rd to NE Alex Barr Rd, Corbett, Multnomah County, Oregon

"A well-kept road, but steep enough to be a brake lever workout."