Lexington to Dubuque Road Trip: Hidden Gems & Scenic Byways

This route traces the path of the historic Lincoln Highway, America's first transcontinental road, connecting the horse farms of Kentucky to the Mississippi river town of Dubuque. The drive covers roughly 500 miles, passing through three state capitals (Frankfort, KY; Columbus, OH; Springfield, IL) and crossing the Ohio and Mississippi Rivers.

Your journey begins on Interstate 75 north, then merges onto Interstate 64 west to Louisville, before connecting to I-65 north and eventually I-80 west. From there, US-20 leads you into Dubuque. Without traffic, plan for an 8-9 hour drive, but a full-day with stops is recommended.

Road quality is generally excellent on interstates, but I-65 near Indianapolis can be congested during rush hour. I-80 in Illinois has construction zones typical of summer. US-20 from Freeport to Dubuque is a two-lane highway with reduced speed limits; beware of farm vehicles.

Family-friendly stops include the Indianapolis Children's Museum (I-65 exit 112), the Abraham Lincoln Presidential Library in Springfield (I-55 exit 92), and the National Mississippi River Museum in Dubuque. For active kids, the Indiana Dunes State Park beach offers sand and waves.

• Pet-friendly: Most rest areas have fenced dog runs. The Red Roof Inn in Champaign accepts pets at no extra cost.
• Fatigue management: Plan breaks every 2 hours. The Kankakee River State Park is a scenic spot to stretch.
• Hidden off-route: The town of Galena, IL (30 min east of Dubuque) is a historic gem with boutique shops and the Ulysses S. Grant Home.

Kentucky's rolling bluegrass pastures give way to the Ohio River valley, then flatten into the cornfields of central Indiana and Illinois. The landscape slowly rises as you approach the Driftless Area of Wisconsin and Illinois, a region missed by glaciers, with steep hills and limestone bluffs.

Natural attractions include Mammoth Cave National Park (a 90-minute detour from I-65), the Indiana Dunes National Park (near the route's northern leg), and Starved Rock State Park in Illinois (off I-80). These natural sights offer hiking, bird-watching, and river views.

Local commerce thrives in small towns like Metamora, IN (antique shops) and Wilmington, IL (historic downtown). For a true taste of the region, stop at the Culver's in Rantoul, IL for frozen custard, or a farm stand near Mahomet, IL for sweet corn in summer. Learn more about how to find the best stops and hidden gems between cities here.

Major highways dominate this route: I-75, I-64, I-65, I-74, I-80, and US-20. Toll roads are minimal, except for a small section of the Indiana Toll Road (I-80/90) west of South Bend. Fuel costs average $3.50/gallon for regular gas.

Key fuel stops: Louisville (exit 5 on I-65), Indianapolis (exit 110 on I-74), and Champaign (exit 182 on I-74). For budget-conscious travelers, Sam's Club and Costco locations in these cities offer lower prices.

• Rest areas: Indiana has 12 well-maintained rest stops with picnic tables and pet areas.
• Illinois rest areas on I-80 offer free Wi-Fi and coffee.
• Mississippi River crossing via US-20 bridge near Dubuque has a $1.50 toll.