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All 86 roads

3,532 miles and 4,875 corners across the Driftless Area — the corner of the Upper Midwest the glaciers went around, leaving a landscape of ridges and coulees that the roads have to follow rather than cut through. Every road is scored on the same five-point curviness scale, measured from the geometry: degrees of turning per mile, counted arc by arc.

Coulee Region, Wisconsin38 roads · 1,632 miles · The coulees, ridge tops and river bluffs of south-west Wisconsin.Bluff Country, Minnesota25 roads · 1,000 miles · The Root River valley, the Mississippi bluffs and the ridge roads above them.Driftless Iowa, Iowa23 roads · 900 miles · The Upper Iowa, the Yellow River country and the climbs out of the Mississippi.

Every road, by how much it turns

Route	Miles	Curviness	Corners	Climb ft	Shape
Two Highways and a River Vernon	51.8	CS-5	107	2,438	Loop
Trempealeau–Dodge–Arcadia Loop Trempealeau	46.8	CS-5	101	1,770	Loop
Norskedalen–Amish Ridge Loop Vernon	40.2	CS-5	86	1,336	Loop
Dorchester and the Northern Ridges Allamakee	38.2	CS-5	74	1,976	Loop
Vernon County Ridge & Valley Vernon	44.6	CS-4	84	1,721	Loop
Bratsberg and Choice Ridge Fillmore / Houston	47.4	CS-4	83	2,193	Loop
Chatfield and the Pilot Mound Ridges Fillmore	48.6	CS-4	79	2,442	Loop
Upper Iowa Bluffs Winneshiek	48.4	CS-4	79	2,202	Loop
Yellow River and the Volney Coulees Allamakee	40.9	CS-4	77	2,621	Point-to-point
Kickapoo–Hillsboro Grand Loop Vernon	41.3	CS-4	73	2,040	Loop
Wisconsin River to Kickapoo Crawford	38.5	CS-4	68	1,759	Point-to-point
Cresco to Decorah the Long Way Howard / Winneshiek	38.7	CS-4	66	1,879	Point-to-point
Pilot Mound and the Fillmore Ridges Fillmore	37.6	CS-4	65	1,879	Loop
Kickapoo Valley Run: Ontario to Gays Mills Vernon / Crawford	38.1	CS-4	64	1,565	Point-to-point
Mormon Coulee to Chaseburg La Crosse / Vernon	35.9	CS-4	62	2,000	Point-to-point
Kickapoo North: Wilton to Viroqua Monroe / Vernon	35.7	CS-4	60	2,041	Point-to-point
Stoddard–Chaseburg–Coon Valley Loop La Crosse / Vernon	29.4	CS-4	55	1,221	Loop
Highway 56 & Readstown Loop Vernon	30.6	CS-4	50	1,563	Loop
Lower Kickapoo: Wauzeka to Soldiers Grove Crawford	28.4	CS-4	46	1,274	Point-to-point
Springwater and the Upper Iowa Winneshiek	27.8	CS-4	46	1,468	Loop
Wildcat Mountain Twisties Monroe / Vernon	25.6	CS-4	44	934	Point-to-point
Eitzen and the Southern Coulees Houston	22.7	CS-4	39	1,034	Loop
Brownsville Bluff Climb Houston	14.2	CS-4	24	977	Point-to-point
The Big Driftless Loop Vernon	63.1	CS-3	96	2,580	Loop
Yellow River Country Allamakee	63.3	CS-3	92	3,214	Loop
Money Creek Coulees Houston	66.2	CS-3	90	3,285	Loop
Winona Bluff Loop Winona	65.2	CS-3	88	2,758	Loop
Lansing Ridge Run Allamakee	56.6	CS-3	87	2,560	Loop
Coon Valley Ridge Runner La Crosse / Vernon	53.6	CS-3	83	2,230	Loop
Beaver Creek and the Caledonia Ridges Houston	54.7	CS-3	78	2,737	Loop
Galesville–Ettrick–Holmen Loop Trempealeau / La Crosse	50.9	CS-3	74	1,892	Loop
The Root River Round Trip Fillmore	51.9	CS-3	68	2,036	Loop
Westby–Chaseburg–Genoa Ridge Descent Vernon	39.2	CS-3	62	1,287	Point-to-point
Amish Harmony Fillmore	45.2	CS-3	60	2,133	Loop
Apple Ridge: Ferryville to Viroqua Crawford / Vernon	38.3	CS-3	60	2,090	Point-to-point
Burr Oak and Hesper Winneshiek	45.0	CS-3	60	1,644	Loop
Bangor–Middle Ridge–Cashton Loop La Crosse / Monroe	40.8	CS-3	59	1,317	Loop
Tomah Southern Loop Monroe	43.9	CS-3	59	1,724	Loop
Village Creek and the Yellow River Allamakee	39.2	CS-3	57	2,397	Loop
Great River Road: Winona to Brownsville Winona / Houston	39.7	CS-3	55	1,492	Point-to-point
Crawford Ridge Runner Crawford	36.6	CS-3	55	1,691	Point-to-point
Cataract–Melrose Backroads Monroe / La Crosse	37.8	CS-3	54	1,662	Point-to-point
Czech Corner Winneshiek / Howard	38.6	CS-3	53	1,625	Loop
Highway 56: Genoa to Viola Vernon	32.3	CS-3	49	1,905	Point-to-point
Root River South Bank: Rushford to Lanesboro Fillmore	29.8	CS-3	46	1,249	Point-to-point
Witoka to La Crescent Winona / Houston	31.4	CS-3	44	1,632	Point-to-point
Decorah to Waukon the High Way Winneshiek / Allamakee	28.0	CS-3	44	1,344	Point-to-point
Volney and the Turkey River Breaks Clayton / Allamakee	29.8	CS-3	41	1,079	Loop
Norwalk–Ontario–Wildcat Short Twisties Monroe / Vernon	29.4	CS-3	40	953	Loop
Whitewater Country Winona	28.4	CS-3	39	1,060	Loop
Highway 43: Winona to Rushford Winona / Fillmore	27.5	CS-3	37	1,418	Point-to-point
Troy and the Chatfield Ridges Fillmore / Olmsted	26.2	CS-3	35	1,220	Loop
Lynxville–Seneca–Ferryville Loop Crawford	25.4	CS-3	34	1,232	Loop
Monona to Marquette Clayton	21.0	CS-3	30	935	Loop
Lewiston to the River Winona	18.5	CS-3	26	207	Point-to-point
Mindoro Cut Loop La Crosse	73.5	CS-2	94	2,655	Loop
Nodine and the Pickwick Valleys Winona / Houston	66.7	CS-2	81	2,826	Loop
Lenora and the Old Stone Church Fillmore / Houston	70.3	CS-2	74	3,150	Loop
Elroy–Sparta Ridge Loop Monroe	61.6	CS-2	70	2,590	Loop
McGregor and the Southern Coulees Clayton / Allamakee	54.2	CS-2	69	1,825	Loop
Choice Ridge: Houston to Spring Grove Houston	48.6	CS-2	63	2,806	Point-to-point
Ettrick–Taylor–Melrose Backroads Trempealeau / La Crosse	56.4	CS-2	61	1,852	Loop
Eldorado and Ossian Winneshiek	51.2	CS-2	60	1,877	Loop
Grandad Bluff to Coon Valley La Crosse / Vernon	45.3	CS-2	58	1,963	Loop
La Crescent and the Pine Creek Coulees Houston	43.5	CS-2	50	1,813	Loop
Perrot Ridge & River: Holmen to Arcadia La Crosse / Trempealeau	47.3	CS-2	49	1,430	Point-to-point
Postville and the Yellow River Allamakee / Clayton	41.9	CS-2	49	1,523	Loop
Rossville Coulees Allamakee	43.6	CS-2	48	1,551	Loop
Protivin and the Czech Ridges Winneshiek / Howard	47.1	CS-2	48	1,248	Loop
Amish Country Run: Cashton–Norwalk–Wilton–Ontario Monroe / Vernon	35.8	CS-2	46	1,265	Loop
Rush Creek Bluffs Loop Crawford / Vernon	39.8	CS-2	44	1,567	Loop
Great River Road: New Albin to McGregor Allamakee / Clayton	39.2	CS-2	42	2,392	Point-to-point
Lansing and the Waterville Coulees Allamakee	33.2	CS-2	42	1,686	Loop
Turkey River Run Winneshiek / Fayette	34.9	CS-2	40	1,098	Loop
Arcadia–Independence–Blair Loop Trempealeau	32.7	CS-2	37	799	Loop
Root River Run Fillmore / Houston	29.3	CS-2	34	607	Point-to-point
Rushford to Chatfield Ridge Fillmore	27.5	CS-2	31	1,661	Point-to-point
Waukon to Decorah Backroads Allamakee / Winneshiek	22.3	CS-2	28	641	Point-to-point
Mississippi Overlooks: McGregor to Harpers Ferry Clayton / Allamakee	16.5	CS-2	17	1,094	Point-to-point
Northern Trempealeau Grand Loop Trempealeau	72.3	CS-1	69	2,030	Loop
Sparta to Trempealeau via Mindoro Monroe / La Crosse / Trempealeau	46.6	CS-1	41	1,514	Point-to-point
Great River Road: La Crosse to Prairie du Chien La Crosse / Vernon / Crawford	62.6	CS-1	39	2,218	Point-to-point
Cranberry Country Cruise Monroe	47.5	CS-1	30	1,275	Point-to-point
Trempealeau River Valley Trempealeau	32.3	CS-1	28	598	Point-to-point
Prosper and the State Line Fillmore / Houston	33.9	CS-1	26	1,152	Loop
Freeburg and the River Coulees Houston	25.3	CS-1	20	975	Loop