U.S. Army Corps of Engineers · Upper Mississippi River National Wildlife And Fish Refuge · IL
THOMSON CAUSEWAY · Site Octagon.
Group Picnic AreaSite type
First-comeHow you get it
ADAAccessible site
The site
TypeGroup Picnic Area
LoopTHOMSON CAUSEWAY
HookupsElectric 15
Pets AllowedYes
Electricity Hookup15
Capacity/Size RatingSingle
AccessibleYes
Source: Recreation.gov RIDB full extract, per-site record · Aug 23, 2026
No reservation needed
First come,
first servedArrive early. Popular loops fill by afternoon.
first servedArrive early. Popular loops fill by afternoon.
Source: Recreation.gov
The campground
Every site, the season, fees, weather, and what is happening on this land right now: Thomson Causeway →
Most private sites here130 95 ft051 94 ft021 91 ft112 90 ft066 84 ft
Source: CAMPANAC campground index