Trace the historic route of Lewis and Clark through Idaho’s most dramatic river canyon on the Northwest Passage Scenic Byway. This 202-mile All-American Road follows US 12 along the wild Lochsa and Clearwater Rivers, carving through the heart of the Nez Perce-Clearwater National Forest from Lewiston to Lolo Pass at the Montana border.

The journey reveals a stunning progression of landscapes: rolling Palouse hills give way to deep forested canyons where whitewater churns beneath towering ponderosa pines and western red cedars. Watch for elk, deer, and osprey along riverbanks that remain largely unchanged since the Corps of Discovery passed through in 1805.

Stop at the Nez Perce National Historical Park to explore the rich heritage of the Nimiipuu people. Soak tired muscles at Jerry Johnson Hot Springs, accessible via a short forest trail. The Lochsa Historical Ranger Station offers a glimpse into early Forest Service life, while countless pullouts provide access to world-class fishing and kayaking.

Allow a full day to savor this drive—rushing diminishes its magic. Late spring through early fall offers ideal conditions, with autumn bringing spectacular golden larches against evergreen slopes. Summer weekends draw rafters and anglers, while September delivers solitude and stunning colors.

Explore Nearby

• Farragut State Park — State Park in Idaho
• Winchester Lake State Park — State Park in Idaho
• Salmon–Challis National Forest — National Forest in Idaho
• Payette National Forest — National Forest in Idaho
• Eightmile Day Use Area — Public Land in Idaho