Jo-Mary Lake Campground is located inside North Maine Woods' Katahdin Iron Works/Jo-Mary Multiple Use Management Forest on the South Shore of Upper Jo-Mary Lake. The sites are spacious and picturesque, accommodating either tents or trailers. Facilities include camp sites with picnic table and fireplace, play areas and recreation rooms. Clean modern amenities with flush toilets, hot showers and laundry are available. Popular activities are fishing, boating and swimming.