Wow running in Boulder

As I was running east on a trail just after dawn today, I was passed by a young fellow.  When I got to the point where the trail crossed a dirt road, the young fellow was standing there, having just taken a look at the trail map.  He glanced up and I saw his mouth form the word "wow".  Now I doubt it was "wow, look at that exquisite runner coming toward me" but maybe it was "wow look how those two cyclists zipped from the road to the trail" or perhaps "wow what a lot of trails there are around here."  But as I continued east, I realized he was looking west.  Yeah. Wow.