State Park · Illinois
Illinois' largest state park at the confluence of the Illinois and Mississippi Rivers: towering limestone bluffs, a historic CCC-built lodge with a 700-ton stone fireplace, winter bald eagle watching, and 12 miles of equestrian and hiking trails.
Field briefing
Pere Marquette State Park changes fast with season and elevation.
Before you go
Plan it around the Goat Cliff overlooks for the bluff views, stay at the lodge for the full experience, and time a January or February visit for the eagle concentration. Illinois state parks are free to enter.
Weather, crowds, and what the season changes about the trip.
Mild with wildflowers on the bluff trails and excellent birding along the Illinois River backwaters.
Pack Rain shell, layers, and sturdy footwear for steep muddy bluff trails.
Warm and humid in the river valley; the forested bluffs provide shade on the hiking trails.
Pack Water, bug spray, and breathable layers; arrive early for busy river overlooks.
Spectacular: wooded ravines and riverside roadways with strong color, a popular scenic drive season.
Pack Warm layer, headlamp for shorter days, and grippy footwear for leaf-covered bluff trails.
Mild for Illinois, with January and February the peak eagle-watching window along the river.
Pack Warm layers, binoculars, and a camera for bald eagle tours and river overlooks.
Goat Cliff Trail and river bluff overlooks
The signature hiking experience: steep bluff trails climbing to open limestone ledges above the Illinois River with long views over the backwater lakes and wooded floodplain.
Pere Marquette Lodge
A Civilian Conservation Corps masterpiece built in the 1930s with hand-hewn timber, rough-cut stone, and a lobby fireplace said to weigh 700 tons and reach 50 feet in height. Open most of the year for overnight stays and dining.
Bald eagle watching in January and February
Pere Marquette hosts one of the most accessible winter bald eagle concentrations in the Midwest, with birds gathering along the Mississippi River and lower Illinois River near the park.
Check road and trail status before committing to the high-country version of the plan. For one day in Pere Marquette State Park, make Goat Cliff Trail and river bluff overlooks the non-negotiable, add Pere Marquette Lodge only if the first stop runs clean, and keep Bald eagle watching in January and February as the flexible finish.
Turn Pere Marquette's conditions into water, pack, and sleep-system decisions.
Build around conditions
Let season, elevation, and weather set the plan.
Plan your trip
4 quick tools, already seeded for Pere Marquette State Park. Tune the numbers around temperature swings, footing, layers, and how much margin the route needs.
Start with the gear decisions this park changes: footing, weather, camping, and water.
Kit Authority
Pere Marquette State Park packing list
0 of 21 packed. Check items as you pack, then take this list to the store, trailhead, or campsite.
Pack planning
Use this as a constraint check while you are still shaping the trip. The active checklist becomes useful once your route, dates, and sleep plan are set.
Checklist mode
21 items, grouped for the trip you are actually taking.
The buying guides that match what Pere Marquette asks of your kit, with our current top picks across budget and use case.
The lodge has 50 spacious guest rooms and 22 stone cabin rooms, reservable through the Pere Marquette Lodge website. The park campground has tent, RV, and cabin options, plus youth tent camp and group camp facilities, reservable through ExploreMoreIL. Grafton is just east, and the nearby Alton and Jerseyville areas add more lodging.
Camping reservations
Fall color and winter eagle-watching weekends are the busiest windows. Lock a lodge room for the full experience or a campsite through ExploreMoreIL for those who prefer to stay in the park on their own.
Reviewed June 11, 2026
Booking window
Illinois state park campsites can be reserved through ExploreMoreIL up to six months in advance. Lodge rooms are reserved directly through the Pere Marquette Lodge.
Where to book or verify
Official IDNR reservation portal for Pere Marquette campsites and cabins.
Reserve lodge rooms and stone cabin rooms directly through the lodge.
Official IDNR page for trails, equestrian access, fishing, and park details.
Check for federal campground, backcountry, tour, and permit inventory tied to this park.
Campgrounds to know
Plan the handoff from arrival to shuttle.
Parking, pedestrian entrances, and shuttle timing decide how calmly the first morning starts.
Getting there
Shuttle access
Pere Marquette State Park is at 13112 Visitor Center Lane in Grafton, Illinois, about 35 miles north of St. Louis on the Great River Road (Illinois Route 100) along the Illinois River.
Car strategy
A car is essential, and the drive along Route 100 through the river gorge from Alton to Grafton is one of Illinois' most scenic roads.
Car strategy
From St. Louis, the drive takes about 45 minutes to an hour depending on traffic at the Mississippi River bridge.
Pair this with lodging: sleep where the park transfer is simple, especially if your route needs an early start.
It is a large historic lodge built in the 1930s by the Civilian Conservation Corps, with massive hand-hewn timber and rough-cut stone construction. The lobby fireplace is said to weigh 700 tons and rise 50 feet. The lodge has 50 guest rooms and 22 stone cabin rooms and is open most of the year.
Yes. Pere Marquette State Park is Illinois' largest state park, covering more than 8,000 acres at the confluence of the Illinois and Mississippi Rivers near Grafton.
January and February are the peak eagle-watching months, with birds concentrating along the Mississippi River and lower Illinois River near the park. The park has hosted guided eagle-watching tours for many years; contact the park office for current program schedules.
No. Illinois state parks have no day-use entrance fee. Camping fees apply for the campground, and lodge room and cabin rates are set by the Pere Marquette Lodge.