Overview
The Rock River Canyon Wilderness Trail takes hikers into one of Hiawatha National Forest's three designated wilderness areas: the Rock River Canyon Wilderness: following the river through a sandstone canyon to a 50-foot waterfall at the route's far end. The wilderness is compact at roughly 4,600 acres, but the canyon itself delivers a feeling of real isolation that the busier northern shoreline trails cannot match.
The trail is in the forest's southern interior, away from the Lake Superior-facing districts that draw most visitors. Expect to have the canyon largely to yourself on all but holiday weekends.
The Route
Miles 0.0 to 1.5: Wilderness Boundary to Canyon Entrance
From the trailhead, the path enters the Rock River Canyon Wilderness immediately and follows a broad forest track south through a mixed stand of maple, hemlock, and yellow birch. The terrain is flat and the footing easy. The Rock River is audible before it's visible, running fast over gravel bars during spring runoff and more quietly in late summer. The canyon walls begin to rise at about mile 1.0 as the gorge narrows.
Miles 1.5 to 2.6: Canyon Floor to Waterfall
The canyon section requires attention to footing: the floor alternates between rocky shelves, sandy beaches, and informal crossings of shallow side channels. The gorge walls are sandstone, similar to those at Pictured Rocks, with the same orange and rusty staining. At mile 2.6, the canyon makes a left bend and the waterfall comes into view. The falls drop 50 feet over a sandstone lip into a clear pool. This is the turnaround point for most hikers.
Return
Retrace the route back to the trailhead. The return is straightforward with the canyon walls orienting direction.
When to Hike
Late May and June bring the highest water flow and the most dramatic waterfall. The canyon floor can be wet and the crossings deeper in early spring. Bugs peak in June.
July through September offer the most pleasant conditions: lower water, firmer crossings, fewer insects, and warm temperatures in the canyon. The falls still flow but are less voluminous.
October delivers excellent fall color at the canyon rim. Temperatures cool quickly, and the falls can be partially frozen by late October in cold years.
What to Bring
Many hikers carry 1.5 to 2 liters of water from the trailhead. River water is nearby but requires treatment. Waterproof footwear or sandals for the wet crossings are practical. A trekking pole helps balance on the rocky canyon floor. Camping in the wilderness requires a stove: campfires are discouraged in the dry canyon.
Trailhead Access
The trailhead is on Forest Road 2293, which branches off H-01 south of Chatham. The forest road is unpaved; a high-clearance vehicle is helpful but most passenger cars manage in dry conditions. No fee, no permit required (as of 2026). Dogs are welcome on leash.
Nearby
The Eben Ice Caves Trail is nearby and makes a natural half-day pairing. The Au Train Lake Trail is about 20 minutes north for a full-day loop option. Check current conditions with our guide to checking conditions before you go, and review Leave No Trace wilderness principles before entering the wilderness area.