The Big 4 Trail—previously known as the Farm Heritage Trail—runs through a canopy of Indiana hardwoods, fields of corn and soybeans, and, at its northern end, passes over the scenic Sugar Creek on an iron bridge. The trail extends from Lebanon to Thorntown, following the former route of the Big Four Railroad, which began serving the region in 1852. In 1861, Abraham Lincoln traveled this route on his way to his presidential inauguration.
The short portion extending north of Thorntown, which is occasionally referred to as the Keewasakee Trail, is paved. Currently, an equestrian path begins at Serum Plant Road, just south of Thorntown, and parallels the trail for 4 miles with more horse-friendly segments to come. Future plans also include extending the trail more than 40 miles to create a connection from the Zionsville Rail Trail to Lafayette.
The trailhead in Lebanon is located off of Sam Ralston Road. You can reach this trailhead by exiting Interstate 65 at State Route 32 and heading east. Sam Ralston Road is the first cross street; take it north past the Denny's restaurant for 0.5 mile to reach the trail.
The northern section of the Big 4 Trail can be accessed in the town of Thorntown. Parking is available at Lions Club Park just north of Main Street. The adjacent equestrian trail can be accessed off of Hazelrigg Road just south of Thorntown.