Magruder Corridor

The Magruder Corridor slices 101 miles through Idaho’s Frank Church-River of No Return Wilderness, following the route that freight wagons used to haul supplies to gold camps in the 1890s. This is the longest public road through designated wilderness in the lower 48, winding along ridgetops at 8,000 feet with drops that’ll pucker your seat cushions. The road passes Magruder Crossing on the Selway River, where early travelers either forded successfully or spent winter waiting for spring thaw.

Stock high-clearance vehicles can handle the route in good weather, but don’t mistake easy for safe — you’re 50 miles from help in any direction, with zero cell service and weather that changes faster than a teenager’s mood. Best season runs June through October, though early and late can mean snow at elevation. Carry extra fuel, food, and water for 2-3 days minimum. What you get is solitude so complete it’s almost religious, plus some of the finest wilderness views in Idaho.