The boat ramp named Minnawanna Lake in Metamora Hadley State Park, Lapeer County, Michigan is a concrete ramp that provides access to Minnawanna Lake. The ramp is 16 feet wide and is suitable for small to medium-sized watercraft. The lake is relatively small, covering just over 50 acres, and is primarily used for fishing, kayaking, and canoeing. According to the official Michigan Department of Natural Resources website, the lake is open to non-motorized boats, electric motors, and gas-powered boats with a maximum horsepower of 10. However, it is always important to check with the local authorities for any changes in regulations or restrictions.