Zone Listings
Zone A - Lower River
Zone A extends north from the Algonquin Dam in Algonquin (River Mile 82.75), to the Wm. G. Stratton Lock & Dam near McHenry, Illinois (River Mile 99). Mile markers are located along the shores of the waterway. Navigation aids mark the channel north of Rawson's Bridge to the Lock. The river is not naturally deep enough for boating in this area, and the channel was created for that purpose. Caution should be used when boating outside the marked channel. There are many rock reefs, sand bars and other shallow areas outside the channel that can quickly spoil a day of fun.
Zone B extends north from the Wm. G. Stratton Lock & Dam near McHenry, Illinois (River Mile 99) to the entrance at Pistakee Lake (River Mile 106). Mile markers are located along the shores of the waterway.
Zone C extends from the mouth of the Fox River at Pistakee Lake north to the Wisconsin State Line, and includes all 15 of the inter-connected lakes in the system. (Only the major lakes are indicated on the aerial photo.)
