
Elroy-Sparta State Trail
West Central Wisconsin / Driftless Area, Wisconsin
Activity
Biking / Historic Railroad Tunnels
Distance
32.5 mi round trip
Route
Point to point
The adventure
The Elroy-Sparta State Trail transforms an abandoned railroad corridor into one of Wisconsin's most memorable cycling adventures. Stretching through wooded valleys, rolling farmland, and small historic communities, this crushed-limestone rail trail is famous for its three railroad tunnels. Riding toward the dark stone portals feels like traveling backward in time, with the surrounding hills and quiet countryside providing a beautiful contrast to the industrial history of the route.
Originally developed along a former Chicago and North Western Railway corridor, the trail became an early landmark in America's rail-trail movement. The experience can be tailored from a short recreational ride to a full 32.5-mile journey between Elroy and Sparta. Historic depots, rural scenery, and dramatic tunnel passages make this more than an ordinary bike ride. It is a combination of outdoor recreation, railroad heritage, and small-town Wisconsin exploration.
ONCE YOU'RE THERE
Begin at Kendall Depot, where trail information and parking are available. Choose a ride toward Elroy or Sparta using the official trail map. Follow the crushed-limestone corridor and obey posted instructions at tunnel entrances. Dismount and walk your bicycle through tunnels where required. Return to Kendall along the same route unless you have arranged transportation for a longer point-to-point ride.
LOCAL INTEL
The trail's historic tunnels are its signature attraction. They are dark, cool, and can be wet even when conditions outside are warm and dry.
HISTORY UNDERFOOT
The former railroad corridor was converted into a recreational trail during the early rail-trail movement, preserving historic transportation infrastructure for outdoor exploration.
FEES & ACCESS
Cyclists age 16 and older need a Wisconsin State Trail Pass. The tunnels are seasonally closed from November 1 through April 30.
TRAIL CONDITIONS & SAFETY
The crushed-limestone surface is generally suitable for hybrid and gravel bicycles. Bring a bright flashlight or headlamp for the tunnels. Watch for wet footing, low visibility, and other trail users.
BEFORE YOU GO
Check Wisconsin DNR trail conditions and seasonal tunnel access before planning your ride.
What to expect
- Three historic railroad tunnels
- 32.5 miles of crushed-limestone rail trail
- Wooded valleys and rolling agricultural scenery
- Historic railroad depots and small communities
Good to know
- Bring a flashlight
- Tunnel interiors are extremely dark, and a reliable light is essential.
- Tunnel season
- The three tunnels close annually from November 1 through April 30.
- Trail pass
- Bicyclists age 16 and older require a Wisconsin State Trail Pass.
- Fee
- Required: Wisconsin State Trail Pass required for cyclists age 16 and older.
- Entrance fee
- Wisconsin State Trail Pass required for cyclists age 16 and older.
- Dogs
- allowed-on-leash.
- Season
- Trail open year-round; railroad tunnels open seasonally outside the November 1–April 30 closure.
Photos

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