Map Imp Lake Campground Forest Road 3978, Ottawa National Forest, Watersmeet, MI 49969 Add To Trip WebsiteEmailPhone: (906) 358-4551 Description Open from May 22 to November 30. 22 site semi-private campground, senior citizens discount, 30 ft. maximum length per site. Nature trail, swimming and picnic area. Videos TripAdvisor® Traveler Reviews More To Explore Categories: Campgrounds & RV Parks Hiking Lodging Recreation City: Watersmeet Region: Western UP 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.