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Twisties

Please post corrections and comments under the individual roads.

Idaho:
Greer Grade Road
Idaho State Route 5
Idaho Route 13 ‘Harpster Grade’
Idaho Route 14 to Elk City
Idaho Route 97
Old Lewiston Grade aka “The Spiral Highway”
Old US 30 @ Emigrant Hill
Old Whitebird Grade Road
Old Winchester Grade
Woodland Grade Road

Oregon:
Robert Aufderheide Scenic Byway (Forest Service Road 19 )
7 Devils Road (Charleston, OR)
Apiary Road
Bald Mountain Road / Willamina Creek Road
Cow Creek Road
Crater Lake Loop
Dead Indian Memorial Road
Mary’s Peak Road
Miami River Road
Nestucca Valley Road
Quincy-Mayger Loop
Old US 30 @ Emigrant Hill
Oregon Route 3
Oregon Route 34 (Waldport – Philomath)
Oregon Route 47
Oregon Route 53
Oregon Route 66 (Ashland to Klamath Falls)
Oregon Route 74
Oregon Route 103 ‘Fishhawk Falls Highway’
Oregon Route 180
Oregon Route 202
Oregon Route 207
Oregon Route 216
Oregon Route 218 ‘Fossil-Shaniko Highway’
Oregon Route 219 (Hillsboro-Newburg)
Oregon Route 224 ’Clackamas Highway’ & FS 46 ‘Clackamas River Road’
Oregon Route 229, the ‘Siletz Highway’
Oregon State Route 245 ‘Dooley Mountain Highway’
Oregon State Route 410 ‘Bull Run to Baker Road’
Paulina-Eastlake Road / Newberry Crater Road
Quartzville Road / Santiam FS 11
Quincy-Mayger Loop
Rowena Crest (Old US Route 30)
Slab Creek Road / Scenic 101
US Route 20 in the Oregon Coast Range(Newport to Philomath)
US Route 197 (Central Oregon – The Dalles)
Wallowa-Whitman Forest Service Road 39
Yachats River Road

Washington:
Almota Road
Chumstick Highway
Gifford-Pinchot Forest Service Road 25
Gifford-Pinchot Forest Service Road 52 (National – Packwood)
Glenwood – Trout Lake Highway
Green Valley Road (Auburn, WA)
High Bridge Road / Snoqualmie Valley Road
Old Highway 8 (off Washington State Route 14)
Mineral Hill Road
Mosquito Lake Road
Orville Road
Rock Island Grade Road
South Skagit Highway / Concrete – Sauk Valley Road
Sunrise Park Road
US Route 101 from Port Angeles to Rialto Beach via Sol Duc Hot Springs
Washington State Route 9
Washington State Route 11 ‘Chuckanut Drive’
Washington State Route 14 ‘Gorge Highway’
Washington State Route 20 ‘North Cascades Highway’
Washington State Route 20 (Okanogan – Tiger/Ione)
Washington State Route 129
Washington State Route 142
Washington State Route 203
Washington State Route 206 ‘Mount Spokane Highway’
Washington State Route 504 ‘Spirit Lake Highway’
Washington State Route 542 ‘Mount Baker Highway’
Washington State Route 706 ‘Stevens Canyon Rd/Westside Road’
Washougal River Road
Woods Creek Road / Monzel Lake Road