Mosquito Lake State Park

1439 State Route 305, Cortland, Ohio 44410
Park Office Phone: (330) 637-2856
Camping Office Phone: (330) 638-5700
Reservations: (866) 644-6727

Mosquito Lake State Park Map View

Water recreation, hiking, camping and picnicking attract visitors to Mosquito Lake, one of the largest lakes in Ohio. 2,483 acres of mature woodlands and vast marshes provide safe haven for wildlife and will delight nature enthusiasts.

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Park Map Campground Map Trails Map Hunting Map

You can find more information about each of the following activities below.

Nature Of The Area

Before Ohio was settled, the banks of Mosquito Creek were hidden by a vast forest that covered most of the state. Little remains of the ancient forest that stood for nearly 10,000 years. In the Mosquito Lake area, regrowth has occurred and the nice stands of beech-maple woodlands can be enjoyed. In pioneer times, the beech-maple belt was very extensive and stretched from Mansfield to Pennsylvania. The reason is that this area has more cloudy days, cooler summer temperatures and more winter snow cover as compared to the rest of Ohio. The park's woodlands support colonies of spring beauties, anemones, Dutchman's breeches, purple cresses and other spring wildflowers. Goldenrod and asters will bloom in the fall in the park's open areas. Many wildlife species find the park's varied habitats suitable. Red fox, woodchuck, muskrat, beaver, fox squirrel, raccoon, rabbit and white-tailed deer are common. Recently, river otters were reintroduced in nearby favorable locations. Several otter families have been sighted. Many birds live in or migrate through the area including robins, warblers, swallows and sparrows. The yellow-bellied sapsucker and hairy woodpecker are uncommon in other parts of Ohio but abundant in this part of the state. Numerous species of waterfowl and shorebirds take advantage of the park's many wetlands during spring and fall migrations. Canada geese, herons, tundra swans, great egrets and a variety of ducks can be observed. Large predatory birds including several species of hawks and the magnificent bald and golden eagles have been spotted here.


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Mosquito Lake State Park offers the following campground facilities:
- 218 electric sites
- 16 non-electric sites
- The majority of the sites are situated in a mature forest while others provide lakeshore access and vistas
- Boat launching area for the campers with shoreline tie-ups
- Facilities include a shower building with flush toilets, and pit latrines are located throughout the campground
- Basketball, volleyball and horseshoe courts are offered in the campground, along with a playground area for youngsters
- Games and sports equipment are available to registered campers at the camp office
- Free WiFi access is available at the camp office to registered campers

Campground Map

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Swimming, Fishing, & Boating

Swimming: A 600-foot beach provides recreation for swimmers and sun bathers. Swimming is permitted in designated areas. Please exercise caution while swimming at the beach. Pets are NOT allowed on swimming beaches.

Fishing: Fishing is popular throughout the year with plentiful catches of walleye, bass, northern pike and crappie. A valid Ohio fishing license is required.

Boating: Unlimited horsepower boating is permitted on the 7,850 acre lake. Five launch ramps provide access to the lake. 250 seasonal dock rentals are offered through the park office. A life jacket loaner board is available at the Corps ramp on State Route 305. Fishing boat, pontoon boat, paddle boat and kayak rentals, fuel and other supplies are available at the Mosquito Lake Marina, (330) 637-2075. Fishing boat rentals are available at the Causeway Sportshop, (330) 637-7076


An archery range is free and open to the public at Mosquito Lake State Park. It is located near the camp check-in building behind the basketball and volleyball courts. Park in the campground visitors parking lot.

Disc Golf

The Squirrel Run Disc Golf Course features 18 holes. It offers both long & short tees and there is no fee to play. Discs are available to rent or purchase at the camp office. The course is open 7 days per week year round.

Dog Park

The Cooperation Station Dog Park is a 5-acre off-leash dog park surrounded by a split wood and mesh fence and features separate areas for small and large dogs as well as a dog swim area. The park has lots of shade and drinking water is provided seasonally.


Hunting is permitted in designated areas of the park and the nearby Grand River Wildlife Area. Controlled hunts, by drawing, are conducted in the Mosquito Creek Wildlife Area in North Bloomfield, at the north end of the lake. A valid Ohio hunting license is required. You can find out more information about getting a valid Ohio hunting and trapping license on Ohio's division of wildlife website: Pursuant to Ohio Administrative Code, no person shall at any time hunt, trap, kill, pursue, or shoot at any wildlife and/or wild animals by any means within 400 feet of any nature trail, picnic area, service area, residence, barn, parking lot, cabin, or other structure.

Mosquito Lake Hunting Map


Two hiking trails allow visitors to explore the woodlands and scenic shoreline of the park. Ten miles of bridle trails give horsemen access to the park's interior. Snowmobilers have access to 14 miles of shoreline and 15 miles of wooded trails. Mountain biking is permitted on 5 miles of multiple-use trail.

Mosquito State Park Trails Map


Four picnic areas are located in the scenic areas of the park and tables are provided. A shelterhouse near the beach is available for reservation online or by calling (866) 644-6727. Bazetta Township Park on the east side of the lake offers two pavilions and a large wooden structure called Imagination Station. For information, call (330) 637-8816.

History Of The Area

Mosquito Lake State Park lies in Bazetta and Mecca townships in the center of Trumbull County. In 1795, the Connecticut Land Company offered for sale a 17,247-acre tract of land named Bazetta Township. This large tract of land was divided into 100 parcels and offered for sale to the early pioneers. The first settlers arrived in the township in 1805. The area was wilderness, and their first tasks were to clear the land, plant crops, build a log house and a stockade for their animals. Deer, turkey, rabbit and squirrel were plentiful. So were bears and wolves. By 1812, most Indians had left the area. Samuel Bacon moved to Bazetta Township in 1816. The Bacon family operated a sawmill from 1816 to 1850. Samueal Bacon erected some of the first frame buildings, developing stores in the community. Thus, the area now named Cortland was locally called Baconsburg. The village of Cortland became a reality in 1874 when the first railroad was built with a depot in Cortland. By 1882, the population of the village rose to 614 people. There were three churches, two newspapers, stores, mills and other enterprises. Agriculture was the first and foremost industry in the area. Most other industries were farm related: feed and flour mill, cheese, dairy and canning factories, mercantiles and lumberyards. In 1930's, plans were drawn up to dam the Mosquito Creek under the Federal Flood Control Act to alleviate floods on the Mahoning, Beaver and Ohio rivers. The dam would also provide domestic water supply for the city of Warren and pollution abatement as a result of the industrialized steel production along the Mahoning River. Completed in April 1944, the dam's capacity held 34 billion gallons of water covering 7,850 acres of land. In 1946. the U.S. Army Corps of Engineers entered into an agreement with the Ohio Department of Natural Resources to manage the recreation on the lake.

Other Area Attractions

The U.S. Army Corps of Engineers maintains five recreational areas along the dam site providing an nature trail and fitness course. A wheelchair accessible fishing dock is located in the Lakeside Picnic Area. Mosquito Creek Wildlife Area, at the north end of the lake, is managed under a lease agreement by the ODNR Division of Wildlife. Grand River Wildlife Area is located west of the park along State Route 88. Punderson, Pymatuning and West Branch state parks are located within a one-hour drive of Mosquito Lake. These parks contain numerous facilities including overnight accommodations and day-use amenities.