Manitou Passage is a navigable Lake Michigan waterway separating North and South Manitou Island from mainland Michigan. The passage—used by deep-draft lake freighters—is located in Leelanau County and is within the Manitou Passage Underwater Preserve.
- "Manitou Passage". Geographic Names Information System, U.S. Geological Survey. 1980-04-14. Retrieved 2013-11-26.
- "11: Lake Michigan". United States Coast Pilot 6: Great Lakes: Lakes Ontario, Erie, Huron, Michigan and Superior, and St. Lawrence River (43rd ed.). Washington, DC: U.S. Department of Commerce, National Oceanic and Atmospheric Administration (NOAA), National Ocean Service. 2013. p. 323. Retrieved 2013-11-26.
- "John F. Kennedy Fast Facts: Manitou (Boat)". John F. Kennedy Presidential Library and Museum. Retrieved 2013-11-26.