Mermet Lake State Fish and Wildlife Area
- Status
- Status not posted
- Entrance fee
- Statewide rule — see below
- Day-use reservations
- None mentioned
- Dogs
- Not stated — check with park
- Camping
- None listed
- Official site
- dnr.illinois.gov(618) 524-5577
Official page last checked Oct 29, 2026. How we keep this current
Overview
In Massac County, about 12 miles northwest of Metropolis, Mermet Lake State Fish and Wildlife Area covers about 2,153 acres.
Fees and passes
Free: 'The Illinois Department of Natural Resources (IDNR) does not charge an Entrance Fee to any state owned or operated land.' Camping, cabins and shelters are fee-based.
Statewide fee rule from Illinois's park system; this park’s page doesn’t list its own fees.
Reservations
- Day use
- No day-use reservation requirement mentioned
- Booking system
- ExploreMoreIL (IDNR camping, cabins, group camps and shelters)
We link to the official booking system rather than showing live availability, which changes minute to minute.
Things to do
Trails
Hiking
The area has two trails. The nature preserve has a small half-mile interpretive trail with tree identification markers and a small boardwalk extending into the cypress swamp. Another nature area has a 1-mile interpretive trail with tree identification markers along the way.
Boating and paddling
Boating
The 452-acre lake, with a maximum depth of 12 feet, is a major attraction at the refuge. Private boats use the four launching ramps, and motors up to 10 HP are permitted. Rental boats, paddles, and life jackets are available from site staff.
Fishing
Fishing
The shallow lake features rip-rap, standing and fallen trees, depressions, lotus pads, and stick-ups. The lake has largemouth bass, crappie, bluegill, sunfish, channel catfish, buffalo, carp, and other feeder and rough fish.
A state fishing license is usually required.
Amenities
Facilities
- Picnic areas
✓ listed by the park · ✕ the park says it is not available. Anything not shown here isn’t mentioned by the official source — that means unknown, not unavailable.
Accessibility
Accessibility at Mermet Lake:
•
Parking - The parking lots are oil chip & gravel. There are concrete accessible parking spaces with adjacent concrete sidewalks.
•
Trails - The Mermet Flatwoods trail is a 1-mile, wheelchair-accessible, fine-aggregate-surface trail located right behind the maintenance building.
•
Fishing/Boating - There is a wooden accessible boat dock adjacent to the Club & Round parking areas on the northwest corner of the lake.
•
Restrooms - The park has accessible vault toilets located near the maintenance building, southeast corner of the lake, Round Pond, Club Parking Lot, and northwest corner of the lake.
•
Hunting - There is an ADA waterfowl blind available at the site. There is also an accessible vault toilet at the blind.
•
Service animals are welcome, but the park does not have outdoor water fountains or hydrants.
Official accessibility information
Conditions change. Contact the park to confirm specific accessible features before your visit.
Getting there
- Address
- 1812 Grinnell Road
Belknap, IL 62908 - Nearest town
- Metropolis — about 12 mi northwest (straight line)
- Coordinates
- 37.2750, -88.8490
- Phone
- (618) 524-5577
Nearby state parks
Sources and freshness
- Illinois State Parks (IDNR state parks and recreation areas) — park page — last checked Oct 29, 2026
- IDNR All Parks list (AEM content-fragment list JSON) + each unit's landing page for official title, coordinates, address, phone
- USGS PAD-US 4.1 (boundary and acreage)
“Last checked” is when our system last read the official source. No change has been detected since this page was first published. Hours, fees and rules can change without notice — confirm with the park before you go. Methodology