OR-207 - Morrow County

Milepost on OR-207 north - Mile 2C. Milepost 90 (B) on US-395 south. The C is because the state of Oregon maintains different internal highways along the state highway system. Some of the signed highways (like OR-207) span multiple internal highways. In this case this is the third internal highway south from the beginning of OR-207 at US-730 that belongs only to OR-207. The first (Hermiston Highway #333) is marked as an A on mileposts. The second (B) stretch is Lexington-Echo Highway #320. This stretch is the third (C) stretch (Heppner-Spray Highway #321). This type of milepost has been showing up in Oregon in the last 10 years, but not on all highways. I have seen it on US-395 and OR-207.