Let's make the last post of the year about the impressive Mountain Time sundial at the historic Dodge City depot, which signaled railway passengers in years past that they had crossed the 100th Meridian and were officially in the West. There's an identical sundial, a Central Time one, a few yards to the east (although the meridian doesn't run between the sundials -- that line is about a mile to the east, between avenues L and M). Travel Note: Dodge City is on Central Time. Mountain now begins a bit farther west, in Hamilton County.