33 CFR 100.919 - International Bay City River Roar, Bay City, MI.
(a)Regulated Area. A regulated area is established to include all waters of the Saginaw River bounded on the north by the Liberty Bridge, located at 43°36.3′ N, 083°53.4′ W, and bounded on the south by the Veterans Memorial Bridge, located at 43°35.8′ N, 083°53.6′ W. (NAD 83).
(c)Enforcement Period: The third or fourth week in June. The exact dates and times for this event will be determined annually.