"Lakes Michigan and Huron are considered to be one lake hydraulically because of their connection through the deep Straits of Mackinac." GreatLakes Environmental
William C.؛ Leone، Les L.؛ Gunn، Craig J. (2001). Engineering Your Future. GreatLakes Press. ISBN:1-881018-57-1. مؤرشف من الأصل في 2022-04-11. Victor E. Saouma