Along bike paths around town, I've been noticing these little temporary-looking signs that say "B-360" or "B-180." What are these? I searched around online but couldn't find a direct answer. The closest I came wa a mention of some special event ride called "Boulder-360" on this page in the Boulder Bicycle Commuters site.
I'm guessing these signs point out a route for circumnavigating all or half of Boulder. But I don't really know. If you know what these signs are for, please comment below.
Maybe I'll find out tonight. If I can scramble and meet a story deadline, I'll stop by the monthly Boulder Bicycle Commuters meeting -- held 7pm tonight at the main public library downtown.
So now, I must write like the wind -- then ride like the wind! Hopefully I'll solve this riddle, too.