flows NW to Middle Fork Fortymile River, 54 mi. SW of Eagle, Yukon Tanana High.
Named by prospectors for Manila Bay, Philippine Islands, where the United States destroyed the Spanish fleet in 1898 at the end of the Spanish-American War. The name is shown on an 1898 manuscript map by C. A. Woodruff.
Bryan Creek, Chicago Boy Creek, Crab Creek, Enterprise Creek, Fish Creek, Fourth of July Creek, Gold Bottom Creek, Gold Run, Jim Creek, John Shedd Creek, Little Manila Creek, Little Whiteman Creek, Manila Creek, McKinley Creek, Missoula Creek, Pennsylvania Creek, Pittsburgh Creek, Portage Creek, Ruby Creek, Silver Bow Creek, Texas Creek, Van Milligan Creek, Watson Fork,
Valleys: