Rule 7. On the waters of that part of Spider lake which lie east of a line bearing 180o true from a point of beginning which is described as the westernmost point of land which is 079o true from the point on the western shore of Spider lake where the north section line of section 10, town 26 north, range 10 west, meets the water's edge, no operator of any motorboat shall:
Mich. Admin. Code R. 281.728.7