Rocky Mountains Dec ’07 part VI
South Dakota. US-16 and interstate 90. And a wee bit of Wyoming and Colorado in the evening. December 2007. Grim winter. 18×18 I-90 shield. 1957 specs. And, more interestingly, an embossed arrow to point the way. Since the 1957 specification called for white, not blue, arrows, they took a 1948-spec arrow that they had lying around and used it to point to the new freeway. This is the sign find [...]