Openings · last 7 days
204
Booking reality
Campsite Sniper detected 204 site openings here in the last 7 days
01 · Detected Opening History · the openings record · file CS-233651
When Thomson Causeway reopens
Thomson Causeway's openings record: every site-date Campsite Sniper detected turning available, logged and time-stamped. Refreshed hourly.
Openings · last 30 days
333
Openings · last 90 days
356
Weekday pattern
Detected openings by day of week · 90dNo strong weekday pattern is evident in the openings Campsite Sniper has detected: 356 openings spread across the week.
Hour-of-day pattern
First detected by hour · local time · last 90 daysThe largest concentrations of detected openings were first detected during the 15:00 and 19:00 local-time hours. Those hours contained 83 of 356 detected openings (23.3%). Hours show when Campsite Sniper first detected each opening, in Central Time, not when the change was made upstream.
Lead-time profile
Days before stay date · percentilesHalf of the openings Campsite Sniper detected appeared at least 9 days before the stay date; the middle 50% land 3–27.2 days out. Set an alert if you want Campsite Sniper to monitor future openings.
Highest-churn sites
Most openings · 90d| Site | Openings | Share of all openings |
|---|---|---|
| 002 | 16 | 4.5% |
| 058 | 14 | 3.9% |
| 064 | 13 | 3.7% |
| 022 | 12 | 3.4% |
| 049 | 10 | 2.8% |
Site 002 had the most detected openings in the last 90 days: 16. One free watch covers every site here.
02 · Availability Outlook · Sep 18 – Oct 24, 2026 · of 128 monitored sites
Of the 4,728 tracked site-dates (Sep 18 – Oct 24, 2026): 2,533 open for online reservation · 2,163 reserved · 32 closed.
Where the open windows are
46.4% of tracked site-dates are not currently open for online reservation. 2,533 of 4,728 remain open; here is where they are.
Load status
Sep 18 – Oct 24, 2026Not open online46.4%
Open site-dates2,533 / 4,728
Reserved (of online inventory)2,163 / 4,696
Weekday openings1,570
Weekend openings882
Of the open site-nights on mapped sites, 1,570 fall on weekdays and 882 on weekends (Fri–Sun). The split covers the 2,452 open site-nights on mapped sites; 2,533 site-dates are open across all monitored inventory.
Open dates by month
Sep 2026 – Oct 2026October holds the most room. 1,712 of 3,064 site-dates are still open there.
Holiday windows
Sites open per night · of 125 sites| Window | Night | Sites open | Status |
|---|---|---|---|
| Labor Day | SAT Sep 5 | 0 | None open |
| SUN Sep 6 | 0 | None open | |
| MON Sep 7 | 0 | None open |
Labor Day: no online availability on any tracked night.
Holiday windows — day use
Units open per date · of 2 day-use units| Window | Date | Units open | Status |
|---|---|---|---|
| Labor Day | SAT Sep 5 | 0 | None open |
| SUN Sep 6 | 0 | None open | |
| MON Sep 7 | 0 | None open |
Labor Day: no online availability on any tracked date.
Best-availability sites
Most open site-nights · tracked window| Site | Open site-nights |
|---|---|
| 129 | 37 |
| 131 | 37 |
| 127 | 36 |
| 082 | 32 |
| 083 | 32 |
The 5 sites with the most open site-nights in the current snapshot. Pair a bookable date with a free alert to cover everything else.
Availability by day-use unit
Most open reservation dates · tracked window| Unit | Open reservation dates |
|---|---|
| Octagon | 36 |
| Stone | 32 |
The 2 day-use units with the most open reservation dates in the current snapshot. Pair a bookable date with a free alert to cover everything else.
Next windows
As of Sep 18, 2026 snapshotNext open dateFri · Sep 18
Next open weekendFri · Sep 18
The next bookable night is Sep 18; the first open weekend starts Sep 18. Campsite Sniper can watch later dates for you.
Stays and site detail
2,452 open site-nights across 123 sites at Thomson Causeway, from the same hourly snapshot as everything above.
125 overnight sites and 2 day-use units are represented in the current inventory. Day-use units are excluded from every night-based figure on this page — site-nights, longest runs, multi-night stays, holiday stays and RV fit; their reservation dates are listed separately below.
Multi-night stays. 364 2-night, 313 3-night, 146 7-night openings where a single site is free for every night, per Campsite Sniper's current snapshot — soonest Sep 18 at site 129.
RV length. Longest recorded site here is 99 ft. 119 sites take 25 ft, 103 sites take 35 ft, 87 sites take 40 ft. 5 sites of 125 have no recorded maximum and are not counted.
Showing 60 of 123 sites with current availability
| Site | Max RV | Hookups | Open site-nights | Longest run | Dates |
|---|---|---|---|---|---|
| 129 | Not recorded | None | 37 | 37 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +25 more |
| 131 | Not recorded | None | 37 | 37 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +25 more |
| 127 | Not recorded | None | 36 | 29 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +24 more |
| 082 | 60 ft | Yes | 32 | 20 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +20 more |
| 083 | 60 ft | Yes | 32 | 20 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +20 more |
| 128 | Not recorded | None | 32 | 14 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +20 more |
| 130 | Not recorded | None | 32 | 19 nights | Sep 18, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30 +20 more |
| 008 | 40 ft | Yes | 31 | 19 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +19 more |
| 012 | 50 ft | Yes | 31 | 21 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +19 more |
| 099 | 55 ft | Yes | 31 | 12 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1 +19 more |
| 105 | 20 ft | Yes | 31 | 12 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1 +19 more |
| 107 | 35 ft | Yes | 31 | 12 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1 +19 more |
| 006 | 40 ft | Yes | 30 | 17 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2 +18 more |
| 020 | 40 ft | Yes | 30 | 17 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2 +18 more |
| 079 | 50 ft | Yes | 30 | 18 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3, Oct 4 +18 more |
| 092 | 70 ft | Yes | 30 | 19 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1 +18 more |
| 007 | 40 ft | Yes | 29 | 22 nights | Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3, Oct 4 +17 more |
| 013 | 30 ft | Yes | 29 | 21 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +17 more |
| 019 | 35 ft | Yes | 29 | 11 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3 +17 more |
| 109 | 45 ft | Yes | 29 | 12 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2 +17 more |
| 123 | 30 ft | Yes | 29 | 19 nights | Sep 21, Sep 22, Sep 23, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3, Oct 4, Oct 5 +17 more |
| 004 | 40 ft | Yes | 28 | 14 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +16 more |
| 014 | 30 ft | Yes | 28 | 18 nights | Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2 +16 more |
| 017 | 35 ft | Yes | 28 | 19 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1 +16 more |
| 080 | 50 ft | Yes | 28 | 20 nights | Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2 +16 more |
| 096 | 35 ft | Yes | 28 | 18 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +16 more |
| 101 | 50 ft | Yes | 28 | 18 nights | Sep 20, Sep 21, Sep 22, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3, Oct 4, Oct 5 +16 more |
| 110 | 50 ft | Yes | 28 | 18 nights | Sep 21, Sep 22, Sep 23, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3, Oct 4, Oct 5 +16 more |
| 009 | 30 ft | Yes | 27 | 19 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1 +15 more |
| 022 | 35 ft | Yes | 27 | 19 nights | Sep 18, Sep 19, Sep 23, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3, Oct 4, Oct 5 +15 more |
| 091 | 55 ft | Yes | 27 | 13 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 27, Sep 29, Sep 30, Oct 1, Oct 2, Oct 5, Oct 6 +15 more |
| 103 | 38 ft | Yes | 27 | 12 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 28, Sep 29, Sep 30, Oct 1, Oct 4, Oct 5, Oct 6, Oct 7 +15 more |
| 121 | 50 ft | Yes | 27 | 11 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 5, Oct 6, Oct 7 +15 more |
| 124 | 40 ft | Yes | 27 | 13 nights | Sep 21, Sep 22, Sep 23, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3, Oct 4 +15 more |
| 003 | 80 ft | Yes | 26 | 12 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1 +14 more |
| 011 | 30 ft | Yes | 26 | 19 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1 +14 more |
| 052 | 30 ft | Yes | 26 | 11 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3, Oct 4 +14 more |
| 085 | 50 ft | Yes | 26 | 11 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3 +14 more |
| 095 | 99 ft | Yes | 26 | 18 nights | Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30 +14 more |
| 097 | 40 ft | Yes | 26 | 10 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3, Oct 4, Oct 5 +14 more |
| 005 | 30 ft | Yes | 25 | 10 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2 +13 more |
| 041 | 30 ft | Yes | 25 | 12 nights | Sep 20, Sep 21, Sep 22, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3, Oct 4, Oct 5 +13 more |
| 081 | 50 ft | Yes | 25 | 9 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 28, Sep 29, Sep 30, Oct 1 +13 more |
| 106 | 50 ft | Yes | 25 | 8 nights | Sep 18, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3 +13 more |
| 122 | 50 ft | Yes | 25 | 7 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 28, Sep 29, Sep 30, Oct 1, Oct 4, Oct 5, Oct 6, Oct 7 +13 more |
| 126 | 35 ft | Yes | 25 | 12 nights | Sep 20, Sep 21, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3, Oct 4, Oct 5, Oct 6 +13 more |
| 024 | 40 ft | Yes | 24 | 10 nights | Sep 18, Sep 19, Sep 20, Sep 27, Sep 28, Sep 29, Sep 30, Oct 5, Oct 6, Oct 7, Oct 8, Oct 9 +12 more |
| 036 | 40 ft | Yes | 24 | 7 nights | Sep 20, Sep 21, Sep 22, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 4, Oct 5, Oct 6 +12 more |
| 098 | 65 ft | Yes | 24 | 15 nights | Sep 21, Sep 22, Sep 23, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3, Oct 4, Oct 5 +12 more |
| 104 | 45 ft | Yes | 24 | 9 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3 +12 more |
| 108 | 45 ft | Yes | 24 | 11 nights | Sep 20, Sep 21, Sep 22, Sep 23, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3, Oct 4 +12 more |
| 112 | 50 ft | Yes | 24 | 12 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3 +12 more |
| 018 | 50 ft | Yes | 23 | 7 nights | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 5, Oct 6 +11 more |
| 078 | 50 ft | Yes | 23 | 13 nights | Sep 20, Sep 21, Sep 22, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3, Oct 4, Oct 5, Oct 6 +11 more |
| 015 | 30 ft | Yes | 22 | 8 nights | Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 4, Oct 5, Oct 6, Oct 7 +10 more |
| 025 | 40 ft | Yes | 22 | 10 nights | Sep 23, Sep 27, Sep 28, Sep 29, Sep 30, Oct 5, Oct 6, Oct 7, Oct 8, Oct 9, Oct 10, Oct 11 +10 more |
| 035 | 30 ft | Yes | 22 | 12 nights | Sep 20, Sep 21, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3, Oct 4, Oct 5, Oct 6, Oct 7 +10 more |
| 037 | 50 ft | Yes | 22 | 12 nights | Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3, Oct 4, Oct 5, Oct 6, Oct 7, Oct 8 +10 more |
| 084 | 50 ft | Yes | 22 | 12 nights | Sep 28, Sep 29, Sep 30, Oct 1, Oct 2, Oct 3, Oct 4, Oct 5, Oct 6, Oct 7, Oct 13, Oct 14 +10 more |
| 086 | 45 ft | Yes | 22 | 13 nights | Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 4, Oct 5, Oct 6, Oct 7, Oct 12, Oct 13, Oct 14 +10 more |
Day-use inventory
68 available reservation dates across 2 day-use units. Day-use inventory is reserved by the date, so it carries no stay length.
All 2 day-use units with current availability
| Unit | Open reservation dates | Consecutive dates | Dates |
|---|---|---|---|
| Octagon | 36 | 29 dates | Sep 18, Sep 19, Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 25, Sep 26, Sep 27, Sep 28, Sep 29 +24 more |
| Stone | 32 | 12 dates | Sep 20, Sep 21, Sep 22, Sep 23, Sep 24, Sep 26, Sep 27, Sep 28, Sep 29, Sep 30, Oct 1, Oct 2 +20 more |
About Thomson Causeway
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. Campsites in the Hickory, Potters South, and Potters North camping loops have water available at each individual campsite. 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.
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.
128 monitored sitesRVs up to 99 ft120 with hookups124 shadedPets OKFire pitsMax party 6
Getting there
Take IL State Route 84 to Thomson, Illinois. Turn west onto Main Street, then turn south onto Lewis Avenue.
Po Box 398, Thomson, IL 61285815-259-3628
BikingCampingDay Use AreaFishingHikingHunting
View on Recreation.gov ↗ Get directions ↗
03 · Field Photos · roll CS-233651 · facility + sites
Photo gallery
Roll CS-233651 · Thomson Causeway · Thomson IL12 frames · facility + sites
FAQ
How do I get a reservation at Thomson Causeway?
Reservations for Thomson Causeway are made through Recreation.gov. 2,533 of 4,728 tracked site-dates are currently open (53.6%). Campsite Sniper has also detected 356 site openings here in the last 90 days, so further dates may appear. Pick a site or unit on the map to see its calendar, or set a free Campsite Sniper alert. You complete the reservation yourself on Recreation.gov.
Does Campsite Sniper book this facility for me?
No. Campsite Sniper sends alerts and direct Recreation.gov links. It never books, pays for, holds, hoards, or resells reservations.
How current is this availability data?
Campsite Sniper re-checks public Recreation.gov availability for this facility every hour and republishes whenever anything changes. This facility's data last changed at Sep 18, 2026 15:19 UTC; an older timestamp means nothing has changed since that time, not that checking stopped. Always confirm final availability on Recreation.gov when you book.
How often do new openings appear at Thomson Causeway?
Campsite Sniper detected 204 site-date openings at Thomson Causeway in the last 7 days, 333 over 30 days and 356 over the last 90.
Can I get a multi-night stay at Thomson Causeway?
313 three-night openings are showing, counting only runs where the SAME site is free for all three nights. The soonest starts Sep 18 at site 129. Confirm and book on Recreation.gov.
Which sites at Thomson Causeway fit a 35-foot RV?
103 of the 125 sites that support RV analysis have a recorded maximum of 35 ft or more; the longest recorded is 99 ft. 120 of those 125 sites have a recorded maximum length and 5 do not; they are not counted as fitting.
Which month has the most availability at Thomson Causeway?
October 2026, with 1,712 open site-dates in the current snapshot of 3,064.
How far ahead of a stay do openings appear at Thomson Causeway?
Half of the openings Campsite Sniper detected appeared at least 9 days before the stay date; the middle 50% landed 3-27.2 days out. Campsite Sniper can monitor future changes for dates you select.
When is the next open date at Thomson Causeway?
As of the Sep 18, 2026 snapshot: the next open date is Fri, Sep 18 and the next open weekend starts Fri, Sep 18. Detected openings can add earlier dates at any time; a free Campsite Sniper alert catches those the moment they appear.
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