Map Tomahawk Lake State Forest Campground M-33 & Tomahawk Lake Hwy., Onaway, MI 49765 Add To Trip WebsitePhone: (989) 785-4251 Description Phone number indicated is for the Atanta Management Unit. Sites available on a first-come, first-serve basis. No reservations. 26 sites for tent and small trailer use. Rustic campground includes vault toilets and potable water from well hand pump. Videos TripAdvisor® Traveler Reviews More To Explore Categories: Outdoors Campgrounds & RV Parks Hiking ORV/ATV Riding Fishing Attractions Lodging Recreation City: Onaway Region: Northeast Although the MEDC uses reasonable efforts to maintain the accuracy of the website content, it is not represented to be error free. Read legal information.