Iowa Admin. Code r. 571-37.84
All motorboats except authorized emergency vessels shall be operated at a speed no greater than 5 miles per hour year around on boat channels adjacent to the interior channel 4 levee at the Green Island State Wildlife area. Both channels begin at the Green Island county road parking lot and proceed north 7,920 feet along each side of the channel 4 levee to an intersection with the Snag Slough complex.
[ARC 9219C, IAB 5/14/25, effective 6/18/25]