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Carlyle Lake

The building of the Carlyle Dam across the Kaskaskia river by the US Army Corps of Engineers created Carlyle Lake for flood management. The largest manmade lake in the state, Carlyle Lake (a.k.a. Carlyle Reservoir) flows through nearly 26,000 acres of three counties in Illinois' West Central Region. The lake is approximately 15 miles long by 3.5 miles wide with an 82-mile shoreline. Although trees and gently rolling hills comprise a portion of the land around the lake, the land is mostly flat, which contributes to the lake's vulnerability to changes in wind speed and direction.

Numerous recreational opportunities are available on and around the lake, especially since Carlyle Lake is home to South Shore State Park on the southeast shore, Eldon Hazlet State Park on the southwest shore and the Carlyle Lake State Fish and Wildlife Area on the northern shore in Fayette County.

Boating, fishing, swimming, camping, hiking, and golf are among the many activities available at Carlyle Lake.


While Carlyle Lake houses over 30 fish species, the most sought after fish in Carlyle Lake include largemouth, smallmouth and white bass; crappie and walleye and flathead catfish.

Producing 3,260 lbs. of fish per water acre, Carlyle Lake is the most productive fishing lake in Illinois. Providing a healthy habitat conducive to producing quality fish, anglers come to Carlyle Lake with the promise of some excellent catches. In 1995, Jody Harris caught a 78 pound flathead catfish in the spillway.

The Illinois Department of Natural Resources Division of Fisheries offers "Spear/Bow and Arrow" and "Hook-and-Line" Sport Fishing Awards to recognize anglers for fish caught in Illinois' waters. (See "Resources for this page" to learn more.)


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    Carlyle Lake Illinois Coordinates:
36.6589N -89.2924W
Map It:
Lake Type:
Surface Area:
26,000 acres
Maximum Depth:
35 ft
445 ft
Normal Water Clarity:
3 ft
Major City:
St. Louis, MO
St. Louis, MO


Carlyle Lake welcomes all boat and motor types and sizes while it is particularly attractive to sailing enthusiasts because of the challenges presented by the diversity in the winds. Sailboat races are held most every weekend throughout the summer. In 1994, Carlyle Lake hosted the U.S. Olympic Festival Sailing Competition.

More than eight public-use boat launch ramps around the lake allow for easy access to the water. Three full-service marinas provide boating and fishing supplies and services.


Carlyle Lake lodging options include campgrounds, cottages, cabins, motels/hotels, bed-n-breakfasts and resorts around the lake and in nearby towns.

Please consult the Lake Resource Guide for information on lodging and events in the area.


The closest major city to Carlyle Lake is St. Louis, MO. Nearby Illinois cities and towns, each with its own unique offerings, include: Shiloh, Collinsville, Belleville, Mt. Vernon and Fairview Heights. Carlyle Lake flows through parts of Clinton, Bond and Fayette counties.

Fun times at Carlyle Lake  Carlyle Lake

  Carlyle Lake   Carlyle Lake

Average Temperatures Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Avg. High  36 Avg. High  42 Avg. High  53 Avg. High  65 Avg. High  74 Avg. High  84 Avg. High  87 Avg. High  86 Avg. High  79 Avg. High  67 Avg. High  54 Avg. High  40
Avg. Low  20 Avg. Low  24 Avg. Low  33 Avg. Low  43 Avg. Low  53 Avg. Low  63 Avg. Low  67 Avg. Low  64 Avg. Low  55 Avg. Low  43 Avg. Low  35 Avg. Low  24