At the gateway in the Upper Flathead River, drainage comes from Glacier National Park, the Bob Marshall Wilderness Complex, and the southeastern corner of British Columbia. Two hundred nineteen miles of the three forks of the Flathead are designated as federal wild and scenic river and are managed to maintain natural primitive environments and unpolluted waters. Directly south lies the Swan Mountain Range, stretching in an unbroken line for one hundred miles with no road crossing its top. East of the Swan Range is the Bob, and just around the next corner toward the park is an eastward view into the Great Bear Wilderness, created in 1978, and into vital habitat in the park and the Bob for the grizzly bear and other wildlife.