Unlimited horsepower boating is permitted on the lake
Mosquito Creek Lake is situated within Mosquito Lake State Park in Trumbull County approximately 1 mile west of State Route 5 in Cortland.
Mosquito Creek Lake was constructed in 1944 by the U.S. Army Corps. of Engineers when they dammed Mosquito Creek nine miles upstream from Niles. The primary purpose of this project was flood control, domestic water supply, and discharge regulation for industrial water supply and pollution dilution. This 7,241-acre lake is part of Mosquito Lake State Park. The maximum depth is 24 feet. Boats are allowed and there is no horsepower limitation. However, there is a "no wake" restriction which extends 300 feet from the shoreline. Also, north of the State Route 88 causeway, there is a 10 mile per hour speed limit for boaters. The fish populations in Mosquito Creek Lake are managed by the Ohio Division of Wildlife.