Cache River State Natural Area Wetland Backcountry Circuit
Illinois' forgotten swampland wilderness
The Cache River cuts through southern Illinois like a forgotten world, where 1,000-year-old bald cypress trees rise from black water and tupelo gums create cathedral-like canopies. This backcountry circuit follows old hunting and fishing access roads through the Cache River State Natural Area, threading between seasonally flooded bottomlands and crossing multiple low-water bridges that become impassable during spring floods. The route passes the massive Champion Cypress near Karnak and winds through sections where the forest floor disappears under seasonal standing water.
Rated moderate due to seasonal flooding and soft muddy sections, this trail requires high-clearance vehicles during dry periods and becomes completely inaccessible during winter and early spring floods. Best tackled late summer through fall when water levels recede and access roads firm up. No permits required, but check water levels with the Illinois Department of Natural Resources. Dispersed camping isn’t allowed, but nearby state parks offer facilities. This is Illinois’ slice of southern swampland — a landscape more Louisiana than Lincoln.
Trail Specs
| Difficulty | Moderate |
|---|---|
| Trail Type | Backcountry |
| Surface | Dirt |
| Features | Remote, Scenic, Water Crossings |
| Length (miles) | 18 mi / 29 km |
| Duration | 1 day |
| Max elevation (ft) | 420 ft |
| Best season | August-November |
| Minimum vehicle | High-clearance 2WD |
| Nearest town | Karnak, Illinois |
| Land manager | Illinois Department of Natural Resources |
| Permit required | No |
| Cell service | Spotty |
| Water crossings | Yes |
| Dispersed camping | No |
| Official sources | www2.illinois.gov |
| Start coordinates | |
| End coordinates | |
| Copy both for Google Maps directionsClick to copy the directions URL · or open it directly in a new tab | |
| Find on Google | Search on Google → |
Location
Trail Conditions
No recent condition reports. Be the first to post one.
Log in to post a condition report.
Frequently asked questions
Do I need 4WD for the Cache River circuit, or will a high-clearance 2WD truck handle it?
High-clearance 2WD is the listed minimum and will get you through in dry conditions. After rain, the low-lying wetland terrain turns soft fast — 4WD with all-terrain tires is the smarter call if you don't know what the last week's weather looked like.
When is this trail actually passable? Spring flooding seems like it'd be brutal here.
Best window is August through November when water levels drop and the ground firms up. Spring is a hard no for most of the circuit — Cache River bottomland floods aggressively and sections can stay submerged for weeks after heavy rain.
Do I need a permit to run the Cache River backcountry, and is there a fee?
No permit is required and there's no day-use fee for the Cache River State Natural Area. Check in with the Illinois DNR site before you go since closures for flooding or resource protection can happen without much notice.
What's the hardest section of the circuit and what makes it sketchy?
The low water crossings through the cypress sloughs are where people get caught out — they look shallow but the bottom is soft mud, not gravel. Depth and firmness change with rainfall, so what crossed clean last month may swallow a bumper this week.
Is there any cell service out here, and can I camp overnight on the circuit?
Cell service is spotty at best and gone entirely in the deeper swamp sections — don't count on navigation or emergency calls working. Dispersed camping is not permitted within the State Natural Area; Karnak is your closest base and it's a small town, so sort your fuel and supplies in Cape Girardeau or Marion before heading out.
Trail track
No GPX track for this trail yet. If you've driven it and have a track, contribute below.
Log in to contribute a GPX track.