Kleinschmidt Grade - NFD 105

Kleinschmidt Grade - NFD 105 is an iconic, white-knuckle route for offroaders seeking dramatic elevation shifts and breathtaking views of the Hells Canyon wilderness. Stretching approximately 18.6 miles, this winding, single-lane dirt and gravel road climbs steeply from the edge of the Snake River at 1,713 feet to a high forested ridge at 5,718 feet, accumulating over 4,300 feet of elevation gain along the way. Suitable for high-clearance four-wheel-drive vehicles, SxSs, and dual-sport motorcycles, the route demands caution due to its narrow width and sheer, unguarded drop-offs that present significant exposure. As travelers ascend, the terrain transforms from rugged, rocky canyon walls to grass-covered slopes, eventually transitioning into dense pine forests. The eastern portion of the grade is especially tight, with very few turnouts for passing oncoming traffic, meaning drivers must remain highly alert and prepared to reverse if necessary. Given the remote nature of this mountain road, visitors should expect variable surface conditions including loose gravel, washboards, and occasional fallen rocks. The route passes by private property where local residents live, making it crucial to travel slowly and keep dust levels down. Seasonally, this area is best accessed from late spring through fall, as winter snows render the steep grade impassable for standard vehicles. Beyond the sheer thrill of the climb, the route connects the depths of Hells Canyon with the historic mountain community of Cuprum, offering an immersive journey through Idaho's rugged backcountry.