Henderson County Conservation Area
- Status
- Status not posted
- Entrance fee
- Statewide rule — see below
- Day-use reservations
- None mentioned
- Dogs
- Not stated — check with park
- Camping
- Yes
- Official site
- dnr.illinois.gov(309) 374-2496
Official page last checked Oct 29, 2026. How we keep this current
Overview
Henderson County Conservation Area is a park unit in Mercer County, about 20 miles northwest of Monmouth.
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.
Pets
See the park’s wording
Pets must be kept on leashes at all times.
Service animals are generally permitted where pets are not. Check with the park for specific areas.
Camping
Camping Tent and trailer sites are available. All campers must obtain a camping permit from the park personnel. Group camping is permitted; all groups of more than 25 persons need advance permission to enter the area.
From the official park page, checked Oct 29, 2026. Site counts and prices can change; confirm when booking.
Things to do
Fishing
Fishing and Boating The lake contains bluegill, sunfish, crappie, channel catfish, bullhead, carp, and sauger. A boat launch is on the east side of the lake. Motors are not allowed; electric trolling only.
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 Henderson County: • Parking - The parking lot at the shelter is gravel over broken and uneven asphalt and does not have accessible parking spaces. There is a short distance to the concrete sidewalk. • Park does not have accessible restrooms. • Service animals are welcome in the park, but outdoor water fountains are not available.
Official accessibility information
Conditions change. Contact the park to confirm specific accessible features before your visit.
Getting there
- Address
- R.R. #1, Box 118
Keithsburg, IL 61442 - Nearest town
- Monmouth — about 20 mi northwest (straight line)
- Coordinates
- 41.0900, -90.9360
- Phone
- (309) 374-2496
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
“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