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Grass Lake

Grass Lake is a lake in Illinois, near Lake County.

Live lake forecast

Grass Lake Fishing Weather

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Fish species in Grass Lake

Grass Lake is the shallow, open part of the Fox Chain beside Chain O'Lakes State Park. The Fox River passes through it, and much of the water is only a few feet deep. You don't need a deep-water fishing plan here. Cover, water color, wind and the route through the shallows matter much more.

Lake facts

  • Lake size: About 1,451 acres
  • Fish to target: Bluegill, crappie, channel catfish, largemouth bass and yellow bass
  • Depth: Mostly shallow; about 6 feet maximum in the DNR reference description

Where to fish

Try small jigs or worms around panfish cover and fish bass lures where vegetation and open water meet. Catfish are another option with a bottom rig in a legal fishing area. Keep an eye on water clarity: the Fox River and wind can change it, so a spot that looked clear on the last visit may fish differently today.

Getting on the water

The state park offers free boat ramps with access into the system, along with camping and designated shoreline fishing. Use the park map for the exact bank areas and routes. Current marina launches around Grass are another option when their location better suits your boat and intended fishing area.

A few things to know

Grass Lake is not a place to run across unfamiliar water on the assumption that the channel continues straight ahead. Use current navigation information and the waterway's operating notices. A Fox Waterway Agency sticker is required. The open surface can also become uncomfortable for paddlecraft when wind or recreational traffic rises, despite its shallow depth.

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