May 28, 2006: West end of MN 16, where old US 16 diverges from the interstate route. The interstate angles northeastward to get closer to Rochester before La Crosse.
Minnesota and Wisconsin keep state names on their shields, but other Midwestern states don’t.
I have been on I-90 from US 83 in central South Dakota through to Albany, New York, except for the segment through Cleveland, and segments in western South Dakota and eastern Wyoming — about 60% of the route.