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Lake Information

County: Richland

Acreage: 846

Average Depth: 14.99 feet

Shoreline Length: 25 miles

Recreational Amenities

Boat Fishing? Unrestricted

Boat Ramps? Yes

Boat Rental? No

Skiing? Yes

Swimming? No

Picnicking? Yes

larger map link Dam Ramp

    Click on area names for a more detailed map.
    Dam, Boat Ramp

Maps are not intended for navigation.

There are no zebra mussels in this lake.

Fish Stocking






Channel Catfish

Advanced Fingerling 4 - 7"




Fingerling 1 - 3"



Channel Catfish

Non-vulnerable 8 - 10"


Additional information for stocking on EAST FORK LAKE

Fishing Outlook  ( Full PDF Report )

Click here for a list of all reports.



Fish Status



Black crappie are the dominant species in East Fork Lake and their population appeared to also be doing well. Body condition remained nearly stable and above target. Black crappie electrofishing catch rates remained high and the majority of the fish were between 8” and 10”. If growth rates remain good, the size structure of the populations should improve further in the coming years. In 2021, most keeper fish will range from 8” – 11” in length and weigh from 0.25 – 0.7 lbs., with a few larger fish over 12”.



The bluegill population structure remained in good shape and consistent with four year trends. Average bluegill body condition decreased, but remained above target. There was a decrease in the number of bluegill greater than 7” . The number of bluegill over 8” also decreased, but remains within the lake management plan target range. Angling for bluegill in the coming year should be fair to good with most keepers 5” – 8” in length and 0.15 – 0.33 pounds.



Catfish numbers remained low in East Fork Lake, but the average size of the fish was very good. Average body condition for these fish also remained good and above target. Most fish in 2021 will range from 2 – 6 pounds with larger fish up to 10 pounds. This lake provides some good bank fishing opportunities. Drift fishing the main lake is also very productive.



The size structure of the bass population shifted slightly from last year. There was a decrease in the percentage of bass in the 12” – 15” size range, but the percentage of adult bass exceeding the 15” minimum length limit remained constant at 33%. The electrofishing catch rate and the average body condition for all sizes of bass both decreased from 2019, but remained above their lake management targets. Fishing prospects for the coming year should be similar to last year with most keeper bass ranging from 15” – 20” in length and weighing between 1.5 – 4.5 pounds.



The size structure and size of the walleye population remained good this year. Five year classes were collected in this year’s survey, and the catch rate was almost 12 per hour during the electrofishing survey and just over 6 fish per net-night in the fall net survey. With many fish in the 2 – 5 lb. range, this lake should provide good fishing opportunities for walleye in the coming year.



The white crappie population structure remained good. The average body condition for all sizes of white crappie decreased this year, but remained above target. The percentage of white crappie over 10” in length remained good at 15%, while over 30% of white crappie exceeded 9” in length.

Location: East Fork Lake is located in Richland County, approximately 1 mile north of Olney Illinois.

Description: East Fork Lake was constructed by the City of Olney in 1971 to serve as a water supply reservoir. The lake has a surface area of 935 acres, a maximum depth of 40 feet, and a mean depth of 15 feet. The lake has 25 miles of shoreline and a watershed of 9,982 acres.

History and Status of the Sport Fishery: The sport fish population in East Fork Lake is comprised primarily of largemouth bass, bluegill, redear sunfish, white crappie, and channel catfish and is stocked annually with walleye. The lake also contains common carp and yellow bullheads. The fish population is surveyed annually.

Additional Lake Information: Two pole and line fishing only. Annual boat stickers and City tournament permits are required. Boat stickers are available at Olney City Hall and local bait shops.

Site Regulations:
Largemouth Bass: 6 fish daily limit; 15" minimum length limit
Walleye: 6 fish daily limit, 14" minimum length limit
White, Black, or Hybrid Crappie: 25 fish daily limit collectively
Bluegill or Redear Sunfish: 25 fish daily limit collectively
Channel Catfish: 6 fish daily limit

Contact Information:
East Fork Lake
Olney City Hall:
IDNR Fisheries Biologist, Boone LaHood

There were 36 tournaments held on this waterbody in 2020.

Species Total Fish Caught
Channel Catfish 58
Largemouth Bass 1226

Top 5 Largemouth Bass caught on this waterbody in 2020 tournaments:

1     6.26 lbs
2     6.17 lbs
3     6.10 lbs
4     6.05 lbs
5     5.62 lbs

Top 5 Total Tournament Weight of Largemouth Bass caught on this waterbody in 2020 tournaments:

1 252.62 lbs
2 222.38 lbs
3 167.28 lbs
4 136.31 lbs
5 132.63 lbs

Multiple day tournaments are listed with * end date.

Interested in participating in one of these public tournaments? Contact us with tournament ID for more information.

2021 Approved or Pending Tournaments
Start Date ID Approval Ramp Location Bank/Boat
Max Boats Species Youth? Open to Public?
November-0717797ApprovedEast Fork Lake boat
15Largemouth Bass