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Army Corps reservoir (Mosquito Lake State Park)

Mosquito Creek Lake

Trumbull County, Ohio

A large flood-control lake near Cortland in northeast Ohio, well known for walleye and crappie. A causeway splits the lake, and the north end is a wildlife refuge.

12345678910N5 mi
Air temp in Cortland, OH Loading current temperature…
Red pins match the numbered boat launches below. Map data © OpenStreetMap contributors.
Surface area7,850 acres
Max depth25 ft
Shoreline—
Boat motorsCheck local rules

Species

Fishery rating out of 5.

Walleye●●●●●

Among Ohio's best inland walleye lakes. Drift crawler harnesses on the flats.

Crappie●●●●●

Brush piles, docks and standing timber. Minnows or small jigs.

Largemouth Bass●●●○○

Weeds, docks and wood in the shallows.

Channel Catfish●●●○○

Cut bait and nightcrawlers on flats and creek mouths in the evening.

Northern Pike●●○○○

Weed edges and bays. Spoons, spinnerbaits and tip-ups through the ice.

When they bite

Month-by-month activity for each target species.

JFMAMJJASOND
Walleye
Crappie
Largemouth Bass
Channel Catfish
SlowFairGoodHot

Boat launches

11 launch sites. Fees and hours change, so confirm before you go.

  • 1Causeway Sport ShopRamp
    Public boat launch, State Route 88, Mecca Twp. No horsepower limit. Launch fee. (330) 637-7076.Directions ↗
  • 2Main Park RampRamp
    Launch with dock or marina, North on Durst Rd just past SP office first right, Cortland. No horsepower limit. (330) 637-2856.Directions ↗
  • 3Dockside MarinaMarina
    Launch with dock or marina, 6083 State Rt. 46, Cortland. No horsepower limit.Directions ↗
  • 4Campgrounds RampRamp
    Public boat launch, State Route 305 & Hogland Blackstub Rd., Cortland. No horsepower limit. (330) 637-2856.Directions ↗
  • 5Mosquito Creek - Corps of Engineers Ramp (RTE 305)Ramp
    Public boat launch, State Route 305, Cortland. No horsepower limit. (330) 637-1961.Directions ↗
  • 6Mosquito Lake State Park ACERamp
    Public boat launch, west of State Route 46 & SR 88, Cortland. No horsepower limit. (330) 637-2856.Directions ↗
  • 7Mahan-Demen Wildlife RampRamp
    Public boat launch, Mahan-Denmen Road, Cortland. No horsepower limit. (330) 644-2293.Directions ↗
  • 8Marina Concession RampMarina
    Public boat launch, North on Durst Dr. past the Park office on the right, Cortland. No horsepower limit. (330) 637-2856.Directions ↗
  • 9Pikie BayRamp
    Public boat launch, 7100 Hoagland-Blackstub Rd, Cortland. No horsepower limit. Launch fee.Directions ↗
  • 10Hillside Cemetary AccessRamp
    Public boat launch, Cortland West Main St. to the lake, Cortland. No horsepower limit. (330) 637-2856.Directions ↗
  • More public accessPublic
    See the ODNR or lake website for all ramps and feesDirections ↗

Size & creel limits

Special rules for this lake, confirmed from official state regulations. Minimum size and daily limit.

SpeciesMin sizeDaily limit
Walleye
Walleye, saugeye and sauger combined
15 in6 / day
Crappie
Black and white combined
9 in30 / day

Other species in this lake: look up the limits at Ohio Department of Natural Resources, Division of Wildlife ↗

Verified October 2026. Rules change, so confirm current limits with the Ohio Department of Natural Resources, Division of Wildlife before you fish.

Bait & tackle nearby

Closest shops to the lake and its boat launches. Call ahead for live bait and hours.

Search more bait shops near Mosquito Creek Lake ↗

Local tips

Angler reports

Water temp, what's biting, and anything else other anglers should know about Mosquito Creek Lake.

Loading reports...

View on interactive map

Zoom and pan on a street, satellite or terrain map. Red pins are boat launches; blue pins are bait shops nearby.