Why drive this stretch

Chicago supplies the major urban pull, Elgin makes the transition out of the denser metro area readable, Belvidere keeps the middle from becoming a blank transfer, and Rockford provides the practical reset before northwest Illinois. The value is the change in scale, not an attempt to give every stop equal time.

Plan the metro portion first

Fix the Chicago lodging, parking, and departure plan before adding small stops. Traffic and construction can change the useful travel window, so check current conditions on the day of travel and leave schedule margin. If Chicago is not a destination on this trip, keep the city-side plan simple and protect the transition toward Rockford.

A Chicago-side route-history reference

In Countryside, modern US 20 on La Grange Road crosses a recognized historic Route 66 alignment on Joliet Road. Use Countryside as a short route-history reference, not as a guaranteed stop. The place guide explains why travelers should independently verify legal parking and stopping options.

Westbound stop chain

1. treat Chicago as the major-city entry, exit, or overnight when it deserves real urban time
2. keep Countryside optional and use it only when the route-history context fits safely and conveniently
3. use Elgin as the first clear handoff after the densest metro decisions
4. let Belvidere break up the approach without forcing a long stop
5. use Rockford for services, a meal, an overnight, or the next route decision

Short-stop towns

• Elgin works best as a connector when the day needs a clear pause after Chicago
• Belvidere is the lighter middle stop; skip it when schedule margin matters more than another pause

Where to give more time

• Chicago carries the book-ahead weight and works best when it is allowed to be a true first or last major stop
• Rockford is the more flexible reset, especially when the next day continues through Freeport and Galena

Best for

• enter or leave Route 20 through Chicago with a deliberate metro plan
• pair one major-city stay with a simpler northern Illinois driving day
• reach Rockford without turning Elgin, Belvidere, and Countryside into mandatory checklist stops

Before leaving

Check current road conditions, construction, weather, and the chosen Chicago parking or lodging arrangement. If the trip is westbound, decide in advance whether Rockford is the day’s endpoint or only the handoff to the Freeport–Rockford connector.