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Shedd Aquarium

Tunnel Hill State Trail

Visitor Center, Hwy. 146, Vienna, IL 62995


The trail runs for 45 miles from downtown Harrisburg to Karnak in southern Illinois.

Rolling agricultural fields, reclaimed strip mines, ravines, rocky streams and wooded bluffs dominate the northern half of the Tunnel Hill State Trail. With 47.8 miles (one-way) of crushed gravel surface, extended inclines and dark tunnels, this trail is a difficult one, but one not to pass up, as long as you’re up for the challenge. The southern half of the trail explodes with scenery that includes bottomland woods, ponds, streams and marshes. The trail, which winds through seven towns, even touches upon a handful of ghost towns that faded into the landscape after the trains here stopped running.

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