Chicago-Area Gravel and Fireroad List

Simple bike-oriented list: crushed limestone, gravel, dirt, unpaved preserve trails, and a few trainable routes. Check closures and bike rules before rolling.

Barrington / Northwest

• Spring Lake / Spring Creek Barrington Hills - 45.8 miles of unpaved, bike-legal Cook County preserve trails. Best Barrington-area fireroad feel.
• Horizon Farm Barrington Hills - 1.2 miles of unpaved trail connecting toward Spring Lake; useful as an add-on.
• Barrington Hills rural-road loop Metra UP-NW to Barrington - paved but excellent rolling route glue: Spring Creek, Otis, Old Sutton, Bateman, Brinker, Cuba, Plum Tree, Kelsey, Haegers Bend, Rawson Bridge.
• Grassy Lake Lake Barrington - 5.8 miles of gravel and mowed-grass trails with Fox River access.
• Cuba Marsh Deer Park / Barrington edge - 3 miles total; includes a 0.9-mile gravel connector to Barrington's Citizens Park.
• Paul Douglas Preserve Hoffman Estates / South Barrington - 24.8 miles paved and unpaved, plus designated MTB singletrack.
• Deer Grove Palatine / Deer Park - 15.5 miles paved and unpaved; good connector into Barrington rides.

Best Local Gravel / Dirt

• Des Plaines River Trail, Lake County - 31.4 miles of gravel through 12 preserves; best long local gravel path.
• Des Plaines River Trail, Cook County - 28.4 miles paved and unpaved; rougher and flood-prone in spots.
• Palos Trail System Willow Springs / Palos - 42.1 miles unpaved; the strongest local dirt system.
• Sag Valley Trail System Lemont / Palos Park - 20.4 miles unpaved; remote-feeling preserve riding.
• Waterfall Glen Darien / Lemont - classic crushed-limestone loop; close, simple, and scenic.
• Illinois Prairie Path - 61-mile crushed-limestone rail-trail network west of Chicago.
• Great Western Trail - mostly limestone rail-trail toward Kane and DeKalb counties.
• I&M Canal State Trail - long crushed-limestone towpath west/southwest of Chicago; good for bigger days.
• Prairie Trail + Hebron Trail McHenry County - unpaved north section plus rural Hebron Trail connector.
• Millennium Trail Lake County - 33 miles open, mixed gravel and paved.
• Buffalo Creek Long Grove - 5.5-mile gravel prairie loop; best as an add-on.
• Salt Creek Trail System - 16.4 miles paved and unpaved; Bemis Woods has the better dirt bits.
• Raceway Woods Carpentersville - flowy MTB singletrack, with pavement/gravel add-ons.
• Campton Forest Preserve Campton Hills / St. Charles - natural-surface, mowed-grass multi-use preserve trails.

Amtrak-Accessible Ideas

• Joliet to I&M Canal / Gaylord Donnelley / Wauponsee Amtrak Lincoln Service / Illinois services to Joliet - easiest Amtrak gravel day from Chicago; reserve a bike spot.
• Mendota or Princeton to I&M / Starved Rock area Amtrak Illinois Zephyr / Carl Sandburg - good overnight idea, but needs road routing from the station to the trail corridor.
• Sturtevant / Milwaukee to Seven Waters + White River Amtrak Hiawatha - Hiawatha has reserved trainside bike service; use this for a Wisconsin gravel rail-trail day with connector miles.
• Carbondale to Tunnel Hill State Trail Amtrak Illini / Saluki - not close, but one of the best Amtrak + gravel weekend options in Illinois; crushed limestone and gravel through southern Illinois.
• Freeport / Driftless edge not direct by Amtrak - still one of the best real-gravel regions from Chicago, but plan it as a drive or mixed train-plus-transfer trip.

Train / Bike Notes

• Amtrak bike service is route-specific; standard bikes generally need a reservation and may have a fee.
• Amtrak bike reservations are required on nearly all routes with bike service; check the booking flow for actual bike-space availability.
• Hiawatha bike service is listed as reserved trainside checked bicycle service.
• Most Chicago-area dirt is crushed limestone or preserve trail, not western-style endless gravel roads. For true gravel roads, look west toward Waterman, DeKalb, Freeport, and the Driftless edge.