Elroy-Sparta State Trail Tunnel 3Elroy-Sparta State Trail Tunnel 3
4.8(129)Attraction
Elroy-Sparta State Trail Tunnel 3 is a historic tourist attraction in Norwalk. One of three rock tunnels along the Elroy-Sparta State Trail, it offers a unique 3,820-foot walk through a former railway passage. Our team maintains this section of the trail, which requires a state trail pass for bicycling, and welcomes visitors year-round to explore its cool, damp interior.