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The popular Rock Run Greenway Trail is a balanced mix of natural areas and cityscapes that alternate over the length of the trail. The natural areas are frequented by recreational users. The cityscapes provide a pleasant and safe link between neighborhoods, schools and businesses.
The principal natural areas are Theodore Marsh (at the northern end), Rock Run Preserve (between the street crossings at Essington Road and Black Road), and Colvin Grove Preserve (between the airport and junior college). The principal cityscapes are at the small Joliet Airport, the Joliet Junior College, and alongside a few city streets.
The main trail is entirely paved, although there are short alternate sections of crushed rock at Theodore Marsh and Rock Run Preserve. There are four small parks and rest areas in the northern section of the trail; one, near the southern trail end.
At its northern end, the Rock Run Greenway Trail connects with the Joliet Junction Trail; at its southern end, with the Illinois & Michigan Canal State Trail. Together these three trails form a popular 16-mile loop.
Parking is available at several locations along the trail (from north to south):
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