^Eastbound trailblazer about a mile east of Illinois Route 59, September 2023.
Illinois Route 68 runs east-west in the northern and northwestern suburbs of Chicago. For most of its length, it's known as "Dundee Road," and its western end is indeed in East Dundee. The eastern end is just a few miles shy of the shore of Lake Michigan, near Glencoe. That's a near-northern suburb, in the notoriously ritzy North Shore area.
The western end of Illinois 68 is a split off of Illinois 72 in East Dundee:
The western end of Illinois 68 is a split off of Illinois 72 in East Dundee:
Before leaving East Dundee, Illinois 68 crosses Illinois 25...
Illinois 62 comes from the northeast to join Illinois 68 east for a short distance near South Barrington...
Soon afterward, Illinois 68 turns northerly onto Illinois 59 as Illinois 62 continues eastward:
After a mile-long concurrency with Illinois 59, Illinois 68 splits to resume going easterly...
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Illinois 68 crosses US Route 12, which carries Illinois 53 from the north and sends it east along Illinois 68:
At Palatine, Illinois 68 is caught acting as the surface road again, meeting an interchange with the Illinois 53 freeway:
In Wheeling, Illinois 68 crosses Illinois 83:
Less than two miles east of there, Illinois 68 crosses US Route 45, concurrent with Illinois 21:
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After passing under Interstate 294 with no access, Illinois 68 crosses Illinois 43 in Northbrook:
Illinois 68 comes to an end at a partial interchange that only allows access to/from the south along Interstate 94/US Route 41...
