Muskegon Lake is a 4,150-acre (16.8 km2) fresh-water lake in Muskegon County, Michigan, USA. Located in the lower peninsula at the mouth of the Muskegon River, Muskegon Lake forms a 12-square-mile (31 km2) broad harbor along the eastern shoreline of Lake Michigan, approximately 2.5 miles (4.0 km) wide by 5.5 miles (8.9 km) long. The Muskegon River, Michigan's second-longest river, originating at Houghton Lake and flowing southwest for 227 miles (365 km), empties into Muskegon Lake at the eastern end before entering Lake Michigan. On the north, Bear Creek/Lake empties into the lake via the Bear Lake Channel and on the south, Ryerson Creek and Ruddiman Creek flow into Muskegon Lake. Several public and private marinas and boat launch facilities are located along the shores of Muskegon Lake and recreational sailing and boating are popular activities. Sport fishing is also popular on Muskegon Lake where King Salmon, Coho Salmon, Steelhead, Brown Trout, Lake Trout and Perch are found. Other popular activities include camping, hiking, picnicking, ice boating, concerts and festivals.