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Mississippi Overlooks: McGregor to Harpers Ferry

Mississippi Overlooks: McGregor to Harpers Ferry is 16.5 miles of point-to-point riding through Clayton and Allamakee Counties in Iowa — Driftless Iowa, the Upper Iowa, the Yellow River country and the climbs out of the Mississippi. Moving time is about 22 minutes; allow 30 with stops — a quick spin. It is scored CS-2, Easy: 17 corners, 116° of turning per mile, 1,094 feet of climbing. The roads it uses, in the order you ride them, are in the app.

Curviness
CS-2Easy · 1.03/mi
Distance
16.5 mi22 min riding
Corners
1741% sharp · Mixed
Climbing
1,094 ft66 ft/mi · Relentless
Shape
Point-to-pointQuick spin
Roads
Backroads93% county & local
Traffic
—no published counts
Speed limit
45 mphtypically 45
Open this route in the app

About this road

Between McGregor and Harpers Ferry the land rises and falls in short, steep pulses, each climb delivering another overlook of the Mississippi. McGregor’s river-port past is still visible in its buildings and street layout; the surrounding bluffs were already celebrated by early travelers. Nearby, Effigy Mounds National Monument protects ancient earthworks shaped like animals overlooking the same water. Any of the designated pull-offs rewards the effort with classic three-state views. The ride is short; the scenery is outsized. Because the distance is compact, every ascent feels purposeful. There is little filler between the river prospects. This is a concentrated primer on the Upper Mississippi’s bluff-and-water geometry between McGregor and Harpers Ferry—ideal when time is limited but the desire for elevation and horizon is not. Climb, look, descend, repeat.

How it rides

17 corners over 16.5 miles — 1.03 a mile, and 116° of turning for every mile ridden. That scores CS-2, Easy on the five-point curviness scale. 41% of those corners are sharp ones, and the road reads as mixed.

What it climbs

The road climbs 1,094 feet in total, 66 feet per mile, between 624 and 1,128 feet — 503 feet of relief. The longest single climb is 485 feet over 1.7 miles, and the steepest grade on it is 9.4%. By Driftless standards that is relentless.

Surface, speed and traffic

73.0% paved — the rest is gravel or seal coat, so check the surface before you commit. 93% of it is back road rather than highway, the other 7% state or US route. Posted speeds run to 45 mph, typically 45, measured across 2% of the route. No published traffic counts cover this route, so it carries no traffic figure rather than a borrowed one.

Where to stop

2 of the towns on this road have somewhere to stop — 1 fuel, 4 food, 3 bars.

Longest stretch without fuel: 16.5 miles. Worth knowing before you set off if your tank is small. Some towns on this road are not yet measured along the line, so treat that as the worst case rather than the likely one.

Listed alphabetically, and chosen by us rather than rated by anybody. The order you reach them, and the mile each one sits at, are in the app.

Worth knowing

Turn-by-turn directions and the spoken guidance are in the app. Every figure on this page is measured from the route itself — corner counts and gradients from the road geometry, elevation from the national elevation dataset, traffic from the state transport departments where counts exist.

Nearby roads