The 10.4-mile Rock Run Trail begins at Theodore Marsh in Crest Hill, where visitors can relax under a picnic shelter or have some fun at the playground before heading out on the trail.

The trail travels south and west from Theodore Marsh to Rock Run Greenway - Paul V. Nichols Access at Ingalls Avenue and Essington Road.

The trail then loops through Rock Run Preserve for three miles before reaching Rock Run Greenway - Black Road Access. Here, trail users can stop to rest under a picnic pavilion or dip a fishing line in the water.

The trail extends an additional five miles south, past the Joliet Park District Airport and Joliet Junior College, ending at Rock Run Greenway - I&M Canal Access. Here, trail users can link to the 60-mile I&M Canal State Trail, which links to the Joliet Junction Trail two miles northeast of I&M Canal Access for a 15-mile loop.

Access the Rock Run Trail at Theodore Marsh, Paul V. Nichols Access, Black Road Access, I&M Canal Access, or Joliet Junior College South Lot, all in Joliet.

Photograph Courtesy of John Parli