Rule 9. On the waters of the Huron river, section 1, T1S, R4E, Dexter township and section 6, T 1S, R5E, Webster township, Washtenaw county, upstream from a point 600 feet below the Macgregor road bridge in the SE 1/4 of SE 1/4, section 1, to Base Line lake, it is unlawful for the operator of a vessel to exceed a slow-no wake speed.
Mich. Admin. Code R. 281.781.9