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Deep Quarry Lake
10.1 mi · 40 acres · max 45 ft · Bartlett
Jul · early morning and evening are key — Deepest lake in DuPage (45 ft). Night fishing permitted — unique in DuPage.
Channel Catfish
Channel Catfish
Best time: Night until 11 PM — unique permit here
Use
Chicken Liver or Cut Bait
Smelly bait on the bottom — catfish are most active at night
1–2 oz sinker, 2/0 circle hook, 18" leader, bottom
How
Night fishing is allowed until 11 PM at Deep Quarry — unique in DuPage. Cast to 10–20 ft depth after dark. Set rod in a holder, wait. Best catfish-at-night water in the county.
Largemouth Bass
Largemouth Bass
Best time: Early morning only
Use
Drop-Shot
Finesse worm suspended off the deep bottom in the thermocline
1/4 oz weight, 8" leader, 4" worm in natural color
How
Bass suspend at the thermocline (15–20 ft) in this deep clear lake in summer. Very technical fishing.
Get Directions to Deep Quarry Lake
Regulations
Channel Catfishmin 12" · 6 per day
Largemouth Bassmin 14–18" slot (keep under 14" or over 18") · 4 per day (max 1 over 18")
All Illinois waters require a valid fishing license. Check IDNR iFish app for current stockings.