State gateway
Iowa Driftless and Upper Mississippi Approach
Current Route 20 region for the Mississippi crossing, the Driftless-facing entry, and the first Iowa state build.
Iowa Driftless and Upper Mississippi Approach
This is now a current Route 20 region page for the Mississippi crossing, the Driftless-facing Iowa entry, and the first built Iowa corridor.
Best ways to use this page now
Use this page when you want the clearest Illinois-to-Iowa handoff before picking a specific Iowa segment, place, or weekend. It is the corridor-facing bridge between the older Illinois proof set and the newer Iowa-to-Oregon chain.
Why this region matters
This page helps the site explain how the Illinois side hands off into Iowa and why the first western restart works best as a readable corridor instead of a random place dump.
What this region supports now
Current guide
Route continuity
Clearer continuity for travelers moving from the Upper Mississippi crossing into the Iowa side of Route 20.
Current guide
Region-first planning
A stronger way to understand the Iowa side before choosing towns, segments, or trips.
Current guide
Fuller corridor map
A broader Iowa map that now runs from Dubuque through the Sioux City side of the state.
Best next pages
Current Iowa gateway
Iowa
Use the state page if you want the full current Iowa corridor from Dubuque to Sioux City.
Current guide
Dubuque, Dyersville, Manchester, and Independence
Start the Iowa corridor in route order from the Upper Mississippi crossing.
Illinois handoff
Illinois
Step back to the Illinois side if you want to compare both sides of the crossing before committing west.