^Southbound US Route 67 approaching the exit to Illinois Routes 111 and 267, January 2021.
US Route 67 runs north-south in western Illinois, from the Quad Cities south to Alton. Both of US Route 67's entrances into Illinois are bridges over the Mississippi River. The route connects many important towns in rural western Illinois, like Monmouth, Macomb, and Jacksonville.
The northern entrance of US Route 67 into Illinois is a Mississippi River bridge from downtown Davenport, Iowa, into downtown Rock Island, Illinois...
The Mississippi River bridge carrying US Route 67 crosses over Illinois 92 in downtown Rock Island, and city blocks immediately to the east and west provide connectivity...
US Route 67 heads south out of Rock Island, meeting the western end of Illinois 5 along the way:
In Milan, the adjacent southern suburb of Rock Island, US Route 67 passes under Interstate 280 with no direct access, but heading east on Airport Road leads to a nearby interchange:
Having recently left the Quad Cities area going south, US Route 67 meets the northern end of Illinois 94:
At Viola, Illinois, US Route 67 crosses Illinois 17:
Near Alexis, Illinois 135 and US Route 67 join together to head west for a bit:
Then, US Route 67 splits from Illinois 135 to resume going southward:
The three routes wrap around the northwest side of town, and Illinois 164 splits to head west away from US Routes 34 and 67...
At an interchange with a half-folded diamond configuration, US Route 34 splits from US Route 67, and US Route 67 continues south independently, away from Monmouth...
Before reaching Roseville, US Route 67 splits into a business alignment and a westerly bypass...
On the west side of Roseville, US Route 67 crosses Illinois 116...
On the south side of Roseville, the business and bypass alignments of US Route 67 converge again...
Just before crossing the Illinois River into Beardstown, a 4-way intersection leads Illinois 100 to join from the east, and the western leg of the intersection is the eastern extent of Illinois 103:
In Beardstown, US Route 67 and Illinois 100 continue south together past the western end of Illinois 125...
After just another single mile, Illinois 100 splits to head south toward Bluffs, as US Route 67 and Illinois 104 curve southeasterly:
As US Route 67 enters Jacksonville, it sends Illinois 104 to split off easterly and becomes a freeway along the west side of town...
At a diamond interchange, the western part of Business Loop 72 comes from the east to join US Route 67 back to Interstate 72...
And, as you might expect, US Route 67's next junction is an interchange with Interstate 72...
After the interchange with Interstate 72, US Route 67 exits the Jacksonville area as a surface road, and its next junction is with the eastern end of Illinois 106 at White Hall...
In Godfrey, Illinois 111 splits from US Route 67 to head toward its concurrency with Illinois 3; US Route 67 soon passes over Illinois 3 with no access, so Illinois 111 can be used to get from US Route 67 to Illinois 3...
In Alton, US Route 67 meets a junction with Illinois 100, where that route starts out going west along the north side of the Mississippi River...
In Alton, US Route 67 turns onto a bridge over the Mississippi River, but staying straight leads travelers to the western start of Illinois 143...
US Route 67 leaves Alton, Illinois, into Missouri, heading south over an east-west section of Mississippi River...