Heidecke Lake
Reservoir. Illinois, United States.
41.3749, -88.3465 — View on the map

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- Area
- 791 ha
- Managed by
- Illinois Department of Natural Resources (fisheries)
- Permit required
- Illinois fishing license (IDNR)
- Step-free access
- yes
- Boat launch
- yes
Species present
Channel catfishIctalurus punctatus
Smallmouth bassMicropterus dolomieu
WalleyeSander vitreus
MuskellungeEsox masquinongy
BluegillLepomis macrochirus
Largemouth bassMicropterus salmoides
IDNR ifishillinois.org fishing outlook species
Local rules
IDNR 2026 fishing outlook: Channel Catfish Poor; Smallmouth Bass Very Good; Crappie spp. Very Good; Striped Bass x White Bass (Wiper) Good; White Bass Good; Walleye Very Good; Muskellunge Very Good; Yellow Bass Good; Bluegill Good; Largemouth Bass Poor. Not mapped: Striped Bass x White Bass (Wiper), Yellow Bass. Site-Specific Fishing Regulations: Recreational Use Restriction: Waterfowl Refuge or Hunting Area (see above) All Fish: 2 pole and line fishing only and each pole must not have more than 2 hooks or lures attached while fishing All live bait greater than 8 inches must be rigged with a quick set rig Channel Catfish: 6 Fish Daily Harvest Limit Large or Smallmouth Bass: 15 inch Minimum Length Limit; 3 Fish Daily Harvest Limit Muskie: 48 inch Minimum Length Limit; 1 Fish Daily Harvest Limit Striped, White, or Hybrid Striped Bass: 10 Fish Daily Harvest Limit with no more than 3 fish greater than or equal to 17 inches Walleye, Sauger, or Hybrid Walleye: 16 inch Minimum Length Limit; 3 Fish
Area rules (Illinois) for these species
| Walleye, sauger, saugeye | 35.6 cm |
| Muskellunge and tiger muskie | 91.4 cm |
Access
Handicap Access: Yes; Boat Fishing: Yes - Unrestricted; Boat Ramps: Yes
Official sources
- Heidecke Lake — ifishillinois.org (IDNR) (accessed on 23 September 2026)
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