Flathead National Forest stretches along the spine of the Rocky Mountains south from the Canadian border for more than 120 miles. With parts of its eastern and northern boundaries bordering Glacier National Park, the forest shares much of the park's spectacular scenery of high ridges and mountains. Its principal rivers are the Swan, Stillwater and the three forks of the Flathead—the North Fork, Middle Fork and South Fork, all in the National Wild and Scenic River system. This is augmented by 3,400 miles of streams and many small lakes. Learn More...