June 22, 2017: The Iowa Welcome Center outside Missouri Valley is Lincoln Highway-themed. Included near the recreation area is a ground-mounted map of Iowa with the Lincoln Highway represented as a raised line across the state.
2017 was full of Lincoln Highway stuff for me. In three different trips I got in touch with at least part of the historic highway in five states — Wyoming, Nebraska, Iowa, Illinois, and Indiana — from west of Laramie to the Ideal Section just across the Illinois-Indiana line. Recapping the western part of that: Great Plains Day 3, Great Plains Day 4, Great Plains Day 5, Great Plains Day 6. The US 30/WY 34 intersection northwest of Laramie is the westernmost point in the country I personally have driven to from Iowa, but not my westernmost visited overall.
(Two photos later was the century-old world map inside the one-room school, which while interesting I didn’t think rose to the status I needed.)