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Lake Information

County: Perry

Acreage: 66

Recreational Amenities

Boat Fishing? Unlimited HP/Wake Only

Boat Ramps? Yes

Boat Rental? No

Skiing? No

Swimming? No

Picnicking? Yes

Camping? Yes

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Maps are not intended for navigation.

There are no zebra mussels in this lake.

Fish Stocking







Fingerling 1 - 3"



Walleye x Sauger (Saugeye)

Fingerling 1 - 3"


Additional information for stocking on PYRAMID-MALLARD LAKE

Fishing Outlook  ( Full PDF Report )

Click here for a list of all reports.



Fish Status



The bluegill population appears relativley poor in Mallard Lake. One Bluegill over 7 inches was collected during the 2021 spring nocturnal electrofishing survey. Site Regulation: 25 fish daily limit.



Little is known about the Channel Catfish population in Mallard Lake. One Channel Catfish was collected during (30 minutes) the 2021 spring nocturnal electrofishing survey. IDNR has observed anglers catching channel catfish from this lake in the past. Experimental gill nets deployed during the 2021 fall netting survey will likely gather much better data on the catfish population. Site Regulation: 6 fish daily limit.



Very few crappie have been collected during any fish community surveys at this lake. It is hoped that fall trap netting will yield better information on the crappie population. Site Regulation: 25 fish daily limit.


Very Good

An electrofishing survey has never been conducted on Mallard Lake until this year (2021). The 2021 spring nocturnal electrofishing survey indicated a very good Largemouth Bass fishery in Mallard Lake. We collected 46 bass during 30 minutes of electrofishing, 11% of which were over 18 inches. 43% of bass were within the 14-18 inch protected slot. The largest bass collected weighed 5 lbs. Site Regulation: 5 fish under 14" and one fish over 18"; 14-18 inch protected slot (no posession).. Site Regulation: Creel limit of 5 fish under 14" and one fish over 18"; there is a protected slot of 14-18" (no possession).



Walleye were initially stocked in Mallard Lake during 2019, followed by a second stocking in 2020. Walleye stockings will be replaced by saugeye (walleye x sauger hybrids) starting this year (2021). Relative to walleye, saugeye generally exhibit greater survival, growth rate, diet plasticity, and tolerance to warm water. Targeted surveys will be conducted every fall to monitor the progression of the fishery and to determine the better candidate (Walleye vs. Saugeye) for stocking in these strip mine lakes. It is hoped that Saugeye fingerlings will demonstrate better survival and recruitment than Walleye, thereby creating a higher density population that should improve angler catch rates.

Location: Pyramid State Park is located south of Pinckneyville in Perry County. Mallard Lake is located on the Denmark Section of Pyramid State Park. The Denmark Section is accessed off of Pyatt-Cutler Road. From State Route 127 head west on Pyatt-Cutler Road. About 7 miles west of Pyramid State Park turn south into the Denmark Section.

Description: Mallard Lake is located on the Denmark Section of Pyramid State Park. Facilities at this 66-acre strip cut lake include a boat launch, floating dock, and bathrooms.

History and Status of the Sport Fishery: The 2021 spring nocturnal electrofishing survey was the first electrofishing survey conducted on Mallard Lake. All fishery information prior to 2021 was based on spring trap net surveys. The electrofishing survey confirmed the lake possesses a very good Largemouth Bass fishery. The planned fall netting survey will hopefully gather better data on other sport fishes present in the lake, such as crappies and Channel Catfish. A targeted nocturnal electrofishing survey will be conducted for Walleye/Saugeye during the fall each year to evaluate the progression of the fishery.

Additional Lake Information: Note: A new horsepower rule went into effect February of 2018: Unlimited HP motor limit and all boats/motors must be operated at no wake speed.

Site Regulations:
Largemouth bass: 5 fish under 14” and fish 1 over 18” limit, 14–18 inch protected slot (no possession)
Bluegill or redear sunfish: 25 fish daily limit
Crappie: 25 fish daily limit
Channel catfish: 6 fish daily limit

2 pole and line fishing only and bowfishing is allowed. All live bait in excess of 8" must be rigged with a quick set rig. Please note that fishing is prohibited from November 1 through February 28.

Maps of 23 lakes located on the Arch Portion of Pyramid State Park can be obtained via email by sending a request to

Contact Information:
Pyramid State Park:
IDNR Fisheries Biologist, Nick Abell

There were 1 tournaments held on this waterbody in 2021.

Species Total Fish Caught
Largemouth Bass 6

Top 5 Largemouth Bass caught on this waterbody in 2021 tournaments:

1     3.12 lbs

Top 5 Total Tournament Weight of Largemouth Bass caught on this waterbody in 2021 tournaments:

1 5.06 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 – 2022 Approved or Pending Tournaments
Start Date ID Approval Ramp Location Bank/Boat
Max Boats Species Youth? Open to Public?
March-1921544PendingPyramid SRA (10 boat max) boat
10Largemouth Bass
July-2321545PendingPyramid SRA (10 boat max) boat
10Largemouth Bass