Hart Mountain Backcountry Byway

Hart Mountain rises like a fortress from the Warner Valley floor, its massive fault escarpment climbing 3,400 feet in less than two miles—one of the steepest grades in Oregon. This 42-mile byway cuts across the Hart Mountain National Antelope Refuge, where pronghorn antelope, bighorn sheep, and sage grouse thrive in landscapes that haven’t changed much since the Ice Age. The road winds through juniper forests, crosses expansive sagebrush plateaus, and delivers you to Hart Mountain Hot Springs—a primitive oasis where you can soak in 98-degree mineral water under endless desert skies.

Difficulty ranges from easy to moderate with some rough, rocky sections requiring attention but manageable in any high-clearance vehicle. Open year-round but best April through October when weather cooperates—winter can bring snow and mud that’ll strand you for days. No fuel, food, or services for 100+ miles, so come prepared. The reward is solitude in one of Oregon’s last truly wild places, where wildlife outnumbers visitors 1,000 to 1.