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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

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There are no zebra mussels in this lake.

Fishing Outlook  ( Full PDF Report )

Click here for a list of all reports.



Fish Status



The bluegill population declined slightly for the first time in three years. No bluegill greater than 8” were collected, however 12.5% were greater than 7”. Body condition fell to just below the target level. Fishing in the coming year should be fair, with most keepers 6” – 8” in length and 0.25 – 0.33 lbs. Site Regulation: 25 fish/day.



Catfish numbers remain low in East Fork Lake, but the average size of the fish is exceptional. Most fish will range from 3 – 10 pounds with larger fish up to 15 pounds common. Body condition of these fish is excellent. This lake provides some good bank fishing opportunities. Drift fishing the main lake is also very productive. Site Regulation: 6 fish/day.



The size structure of the bass population improved slightly for the second consecutive year. The catch per effort rose significantly. Data from the annual population survey show 24% of the population exceeds the 15” minimum length limit. The number of fish just below the 15" minimum length limit remains high and, if mortality rates can be reduced for bass > 15”, the large number of smaller bass (12” – 14”) should further improve the size structure of the fishery in the coming year. The body condition for all sizes of bass remained relatively stable. Bass fishing should be fair to good in 2017 with most keeper fish ranging from 15” – 17” in length and weighing between 1.6 – 3.3 pounds. Site Regulation: 6 fish/day; 15" minimum length limit.



The size structure and size of the walleye population improved for the third year in a row. Four year classes were collected in this year’s survey, and the catch rate improved. The size structure of the population remains good, and with many fish in the 2 – 5 lb. range, this lake should provide quality fishing opportunities for walleye in the coming year. Site Regulation: 6 fish/day.



The white crappie population showed some improvement in the past year. The population is still dominated by a strong year class of 8” – 9.5” fish. All sizes of fish were in good condition. The percentage of fish over 10” in length improved over the past year too, and if growth rates remain good for the large year class of smaller fish, the size structure of the population should improve further in the coming year. For the spring of 2017, most keeper fish will range from 9” – 10.5” in length and weigh from 0.5 – 0.7 lbs with a few larger fish up to 14”. Site Regulation: White, Black, or Hybrid Crappie: 25 fish/day collectively.

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/day; 15" minimum length limit
Walleye: 6 fish/day
White, Black, or Hybrid Crappie: 25 fish/day collectively
Bluegill or Redear Sunfish: 25 fish/day collectively
Channel Catfish: 6 fish/day

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

There were 59 tournaments held on this waterbody in 2018.

Species Total Fish Caught
Largemouth Bass 1919

Top 5 Largemouth Bass caught on this waterbody in 2018 tournaments:

1     7.00 lbs
2     6.88 lbs
3     6.56 lbs
4     6.37 lbs
5     5.91 lbs

Top 5 Bag Weights of Largemouth Bass caught on this waterbody in 2018 tournaments:

1     260.00 lbs
2     242.24 lbs
3     240.54 lbs
4     204.91 lbs
5     178.41 lbs

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

2019 Approved or Pending Tournaments
Start Date ID Approval Ramp Location Bank/Boat
Max Boats Species Youth? Open to Public?
September-2211550ApprovedEast Fork Lake boat
15Largemouth Bass
September-2813497ApprovedEast Fork Lake boat
20Largemouth Bass
October-0511200ApprovedEast Fork Lake boat
10Largemouth Bass
October-0610967ApprovedEast Fork Lake boat
15Largemouth Bass
October-0612332ApprovedEast Fork Lake boat
10Largemouth Bass
Spotted Bass
October-1211177ApprovedEast Fork Lake boat
20Largemouth Bass
October-1211880ApprovedEast Fork Lake boat
10Largemouth Bass
October-1311998ApprovedEast Fork Lake boat
20Largemouth Bass
October-1913698ApprovedEast Fork Lake boat
7Largemouth Bass
October-2610906ApprovedEast Fork Lake boat
20Largemouth Bass