The International Selkirk Loop is a scenic highway in the U.S. states of Idaho and Washington, as well as the Canadian province of British Columbia. The loop encircles the Selkirk Mountain Range, and offers several side trips aside from the main route. Included on the loop is the Kootenay Lake Ferry, the longest free ferry in the world. The portion of the loop in the United States has been designated an All-American Road by the United States Department of Transportation. Route description Washington The International Selkirk Loop begins on U.S. Route 2 at the Washington-Idaho state line, in the city of Newport. The highway proceeds west for a short distance, passing several buildings that make up the twin, before U.S. Route 2 splits off, and the Loop designation transfers to Washington State Route 20. The highway proceeds northwest, traveling parallel to the Pend Oreille River. The road continues, intersecting several small roads before entering the community of Usk and intersecting Washington State Route 211. The roadway bends northward, passing the community of Cusick, and continuing parallel to the Pend Oreille. Continuing northward, the highway intersects several small roads, and makes a large northeastward bend, before returning to traveling northward. It proceeds north, passing through a small portion of Colville National Forest, before entering Ione. While traveling through Ione, WA 20 splits off, and the Loop designation transfers to Washington State Route 31. Continuing northward, the roadway passes the Ione Municipal Airport, proceeding parallel to the Pend Oreille River, before crossing over the river and entering Colville National Forest. The road proceeds north, intersecting several small forest roads, before reaching the Canada–US border, where the WA 31 designation ends. The loop enters Canada, and the designation transfers to British Columbia Highway 6. British Columbia After entering British Columbia, the Loop proceeds northward, traveling parallel to a small creek. After intersecting several smaller roads, BC 6 intersects British Columbia Highway 3, which runs concurrently with the highway. The highway proceeds north, continuing along the course of the small creek, intersecting several small roads. After several miles, BC 3 splits off the highway. The route proceeds through the community of Salmo, before proceeding northeast. The road bends northwestward, before zigzagging along a valley floor. The roadway passes to the west of West Arm Provincial Park, and enters the community of Nelson. In Nelson, the Loop's designation transfers to British Columbia Highway 3A at