Illinois State Parks · Illinois
Big River State Forest
Illinois State Parks · Illinois, United States
- Showers
- No
- Pets
- Yes
- Elevation
- 568 ft
- Dark sky
- Bortle class 1
- Cell coverage
- Verizon weak · T-Mobile none · AT&T none (carriers' 4G LTE filings to the FCC, 2025-12; not measured here)
- Nearest town
- Keithsburg
- Address
- 1337 Township Rd 2850N, Keithsburg, IL 61443
- Phone
- (309) 374-2496
- Activities
- Camping, Equestrian Camping
About
Big River State Forest is an Illinois DNR state park in the Northwest region of Illinois. Camping site types: Class C (vehicular access without showers, or walk-in with shower access); Class D (tent/primitive walk-in or backpack sites, no vehicular access); Equestrian camping. Pets ARE allowed (leashed, with water, never left unattended or in a parked vehicle) - IDNR's general statewide practice, confirmed via Starved Rock State Park's own IDNR FAQ. Reservable online through Illinois DNR's own Explore More Illinois system (camp.exploremoreil.com, redirects to the live recreation.exploremoreil.com/IllinoisWeb/ booking platform). Advance booking requires at least 3 days' notice; most sites are reservable May 1-October 31 (some year-round - confirm per park).
Fees
Class C: $8/night - vehicular access without showers, or walk-in sites with shower access. Class D: $6/night - tent camping or primitive sites (walk-in or backpack), no vehicular access. Equestrian camping available (specific class/rate varies by site). Reservation fee $5/reservation (non-refundable) plus first night's camping fee; camping fees refunded if cancelled online 3+ days before arrival. Discounts (about half the listed camping fee, full utility fee still applies) for Illinois residents 62+ or disabled with a Class 2/2A card; Illinois disabled veterans and POWs camp free aside from the utility fee; no entrance fee to any Illinois state park (dnr.illinois.gov).
Weather, month by month
| Month | Typical high | Typical low | Coldest night | Hottest day | Years with a night below 32°F |
|---|---|---|---|---|---|
| January | 30° | 16° | -18° | 57° | 11 of 11 |
| February | 37° | 21° | -16° | 66° | 11 of 11 |
| March | 51° | 33° | 9° | 76° | 10 of 11 |
| April | 62° | 41° | 26° | 81° | 5 of 11 |
| May | 74° | 57° | 41° | 91° | 0 of 11 |
| June | 85° | 66° | 50° | 94° | 0 of 11 |
| July | 86° | 70° | 61° | 95° | 0 of 11 |
| August | 84° | 68° | 58° | 93° | 0 of 11 |
| September | 81° | 62° | 53° | 95° | 0 of 11 |
| October | 63° | 47° | 30° | 85° | 2 of 10 |
| November | 52° | 33° | 10° | 74° | 7 of 10 |
| December | 39° | 27° | -9° | 70° | 10 of 10 |
Mid-month figures from 2016–2026 of daily weather at this spot (ERA5 reanalysis via Open-Meteo, CC BY 4.0), in °F. Typical is the median; coldest and hottest are the extremes seen.
Nearby campgrounds
- Henderson County State Fish and Wildlife Area · Illinois State Parks · 3 mi
- Delabar State Park · Illinois State Parks · 6 mi
- Citizens Lake Campground · City, County & Regional Parks · 17 mi · 30 sites
- 4th Pumping Plant Recreation Area · City, County & Regional Parks · 19 mi · 46 sites
- Big Hollow Recreation Area · City, County & Regional Parks · 19 mi
All public campgrounds in Illinois · Every state and province · Facts read from the operator 2026-08-25. Confirm fees, rules and current status with the operator before you go.