The park completely surrounds Bear Head and four smaller lakes and includes partial shoreline of three others. Bear Head Lake has of shoreline, an average depth of , and a maximum depth of . The northwest corner of the park includes of shore on Eagles Nest Lake No. 3, almost half of the lake's shoreline. Blueberry Lake and Square Lake near the southeast corner are and respectively. Near the park road, Cub Lake covers with a maximum depth of while Norberg Lake reaches deep. Grassy Lake straddles the eastern boundary, with of shoreline within the park; a quarter of its total. Numerous other ponds and bogs dot Bear Head Lake State Park. Although its statutory boundary covers , this figure omits lake surfaces, which would bring the total to .