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Elroy-Sparta State Trail

Elroy-Sparta State Trail, Juneau, Monroe Counties, WI, 34.07 miles

Trail Facts

Hall of Fame
Inducted 2008 by Rails to Trails Conservancy
Length 34 mi
Elevation 795 to 1229 ft
Grade 0.4% average
Shade cover 37%
Surface Crushed gravel

Activities

E-biking · Biking · Walking · Running · Hiking · Birding · Cross-country skiing · Snowmobiling · and more

About This Trail

The Elroy-Sparta State Trail runs 34 miles of crushed limestone across the Driftless hills of Monroe and Juneau counties in western Wisconsin, linking Sparta, Norwalk, Wilton, Kendall and Elroy. It is generally credited as the first rail trail in the country. The old Chicago and North Western grade crosses three watersheds, the La Crosse, Kickapoo and Baraboo, so the ride is a series of steady climbs to a ridge, a jaunt through a dark, wet, hand dug tunnel, and a long coast down the far side. Between the ridges the trail rolls through open farmland and small towns a few miles apart. At Sparta it continues as the La Crosse River State Trail, at Elroy as the 400 State Trail.

RailTrailWx TIPS

Elroy-Sparta State Trail

Your comfort. Prognosticated.

  • Most of the trail runs open through farmland and river bottoms, so expect sunny stretches; the shade is concentrated in the deep rock cuts leading into each tunnel.
  • The corridor follows an east-southeast to west-northwest line for most of its length. A west wind is a headwind riding toward Sparta and a tailwind riding toward Elroy.
  • The grade climbs about 430 feet from Sparta to the high point at the ridges and crosses three watersheds, the La Crosse, Kickapoo and Baraboo. Each tunnel sits at a summit, so the ride is three steady climbs of up to 3 percent with long coasts between them.
  • The tunnels stay cool and wet year round, with water dripping from the ceiling and puddles underfoot, and Tunnel 3 is the wettest. Walk your bike, bring a headlamp, and carry a layer for the three quarter mile walk.
  • The rock cuts at the tunnel approaches hold shade and moisture, so they dry slowly after rain while the open farmland stretches dry fast.
  • The three tunnels are closed from November 1 to April 30 to protect the bores from freeze and thaw and to let bats hibernate.
  • In winter the trail is open to walking, biking, skiing and snowshoeing but is not groomed, and it is shared with snowmobiles. The trail and its campgrounds are open to hunting during the Wisconsin state parks hunting time frame.

-Cory

Trivia

  • Tunnel 3 is 3,810 feet long, while Tunnels 1 and 2 run 1,694 and 1,649 feet.
  • In 1874 the Chicago and North Western reported spending $476,743.32 to bore the three tunnels.
  • Watchmen once opened and closed the 20 foot tunnel doors for passing trains, as often as 50 times a day, to keep freezing air out of the bores.
  • The Kendall depot was built in 1900, joined the National Register of Historic Places in 1981, and now houses a railroad history museum at the trailhead.
  • The Wisconsin Conservation Commission bought the abandoned corridor for $12,000.
  • Norwalk calls itself the Black Squirrel Capital of the World.
  • Sparta bills itself as the Bicycling Capital of America and is home to the Deke Slayton Memorial Space and Bicycle Museum.
  • Tunnel 3 is rated a Priority 2 bat hibernation site in Wisconsin, a ranking for sites holding between 300 and 3,000 bats.
  • The trail is part of 101 miles of converted Chicago and North Western grade in the region.
  • The trail was certified a National Recreation Trail on June 1, 1971, and entered the Rails-to-Trails Conservancy Hall of Fame in September 2008.

Climate

Excellent biking days per month, 2011-2025 climatology

In a typical year the Elroy-Sparta State Trail has about 94 to 137 days of excellent weather for popular activities such as hiking, dog walking, e-biking, running, biking, birding, and walking, with May, September, and October the best months.

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Hourly comfort scores for the next 15 days of weather, tuned to your activity and your own thresholds.

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Enjoy the Elroy-Sparta State Trail!

Peak Fall Color Climatology

Calendar of the typical peak fall color window along this trail

In half of past years, color along the Elroy-Sparta State Trail peaks October 16 to 27, typically around October 21. The trail has 31% deciduous coverage, with the majority being northern red oak, white oak, American elm, black oak, red maple, sugar maple, and American basswood.

History

The Baraboo Air Line Railroad, incorporated on March 8, 1870, set out to push a line from Madison to Winona through the ridges between Elroy and Sparta, and the tunnels nearly broke it. On March 10, 1871, it was consolidated into the Chicago and North Western, which finished the work. Crews bored three tunnels through the Driftless ridges by hand and dynamite, the longest about three quarters of a mile. The line opened through to Winona in September 1873. A year later the company put the cost of the tunnels at $476,743.32. The route became part of the North Western main line between Chicago and the Twin Cities, with grades up to 3 percent that were steep for a main line. Twenty foot wooden doors hung on the tunnel portals, and in winter watchmen opened and closed them between trains so freeze and thaw would not loosen rock at the entrances. The Kendall depot went up in 1900. In 1964 the North Western won permission to abandon the Elroy to Sparta stretch, and the state bought the corridor for $12,000. The Elroy-Sparta State Trail came into use in 1967 as the first rail trail in the country. It was certified a National Recreation Trail in 1971 and entered the Rails-to-Trails Conservancy Hall of Fame in 2008. Summer floods in 2018 closed the trail for nearly four years. After $2.3 million in bridge, culvert and landslide repairs at 27 sites, it reopened in May 2022.

Trailheads

  • SpartaMILE 0Directions
  • Sparta CampgroundMILE 1.2Directions
  • NorwalkMILE 12.9Directions
  • WiltonMILE 18.6Directions
  • Kendall DepotMILE 27.7Directions
  • ElroyMILE 34.1Directions

Connects To

400 State Trail · La Crosse River State Trail

Managed By

Wisconsin Department of Natural Resources

Further Reading

  • Wisconsin DNR · Basic Information | Elroy-Sparta State Trail
  • Wisconsin DNR · Recreation | Elroy-Sparta State Trail
  • Wikipedia · Elroy-Sparta State Trail
  • Rails-to-Trails Conservancy (TrailLink) · Elroy-Sparta State Trail | Wisconsin Trails
  • Rails-to-Trails Conservancy (TrailLink) · Pathway to the Past: Elroy-Sparta State Trail
  • Wikipedia · Kendalls station
  • National Recreation Trails Program · Elroy-Sparta State Trail
  • Devil's Lake State Park Area Visitor's Guide · Bats of the Elroy-Sparta State Trail
  • Explore Monroe County · Bike Wisconsin's First Rails to Trails: A Scenic Ride in the Driftless Region
  • Wisconsin Bike Trails · Elroy-Sparta State Trail
  • Wikipedia · Baraboo Air Line Railroad
  • Rails-to-Trails Conservancy (TrailLink) · Elroy-Sparta State Trail History
  • Wisconsin DNR · Elroy-Sparta State Trail Reopening Soon
  • Wisconsin Public Radio · Elroy-Sparta State Trail reopens after years of post-flooding repairs
  • We Wisconsin · Elroy-Sparta Bike Trail and Tunnels: Know Before you Go

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