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State Park
Thomson Causeway
Upper Mississippi River National Wildlife And Fish Refuge · Thomson, IL
Verify with the state park system
State parks set their own rules and reservation systems. Fire bans, road closures, and operating dates change seasonally — check the state park website before traveling.
10 Tent121 RV2 Group
Official sources & verification
Managed by State Park
Source of truth
- Operator website
Listed website for the campground operator.
Managing agency
- Upper Mississippi River National Wildlife And Fish Refuge — official page
Park unit page with alerts and visitor information.
- National Park Service unit page
Alerts, conditions, and the unit's plan-your-visit page.
Verify by phone or mail
- Operator:815-259-3628
- Email:mvrodmn13@usace.army.mil
- Address:PO Box 398 · Thomson, IL · 61285
Live availability
via Recreation.govSee every open campground nearbySame dates & filters, across the whole area
Availability is a recent snapshot, not a live hold — you always complete the booking on recreation.gov.
About
Overview
Thomson Causeway provides the unique experience of island camping on the great Mississippi River and it's well worth a try!
The western edge of the recreation area offers visitors an unobstructed view of the widest spot on the Upper Mississippi River Basin, 3.5 miles from shore-to-shore. Here, campers can enjoy memorable views of the river and the valley, and partake in plenty of great water activities.
Recreation
Popular activities include fishing, hiking, hunting, biking and boating. Common fish species include the channel catfish, bluegill, walleye, large mouth bass, and northern pike. The Central Trail section of the famous Mississippi River Trail passes beside the campground, offering visitors miles of walking and biking trails along the river bank.
Facilities
Of the 125 reservable campsites, 120 have electric hookups and 5 campsites do not have electric hookups and are for tents only. Thomson Causeway provides the comforts of modern camping, including drinking water, an accessible flush toilet, electrical hookups, shower house and boat ramp, while still providing visitors with an authentic outdoor experience. This park also offers 2 reservable picnic shelters for day use.
Natural Features
The campground is built mainly on an island in the backwaters of the Mississippi River. Slow moving water on the eastern edge of the main recreation area creates a rich environment in which wildlife and fish abound.
contact_info
For local information, please call (815) 259-2353 or call (815) 259-3628 for general information.
Nearby Attractions
Head northbound along the river to see the Ayers Sand Prairie State Nature Preserve or the Mississippi Palisades State Park.
Visit the Ingersoll Wetlands Learning Center and Fulton's Dutch Windmill. Or watch a minor league baseball game at the Clinton Lumberkings stadium.
Reviews
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Amenities
Showers
Flush Toilets
Potable Water
Dump Station
Electric Hookups
Firewood
Accessible
Picnic Tables
Fire Rings
Trash Service
Cell Service
Pet Policy
Pets allowed on leash
Campground Rules
- Campfires generally permitted — verify current fire restrictions before lighting
Individual Sites (133)
Within ~30 miles
Trails near Thomson Causeway

Sentinel Trail
Illinois
1.1 mi312 ftgain
TrailModerate

High Point Trail and Rock Top
Illinois
3.8 mi551 ftgain
TrailModerate

Nelson and Dyas Units
Iowa
4.0 mi1,004 ftgain
TrailModerate

Paul Skeffington Memorial Trail
Iowa
3.3 mi272 ftgain
TrailModerate

Hennepin Canal Feeder Trail
Illinois
16.6 mi400 ftgain
TrailEasy

Meadow and Quarry Trail
Iowa
2.4 mi358 ftgain
TrailEasy
Nearby Campgrounds
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