Most of the Rocky Mountain West experienced a cold snap on Saturday that we had a little taste of — temps between -10 and 0F, with about 6 inches of "cold smoke" snow on the ground. Temps climbed to 61 degrees in Boulder on Thursday, so I know a cold snap here is as fleeting as it is beautiful. Beat and I ventured out in the afternoon for a four-hour, surprisingly strenuous hike on a loop that normally takes me closer to two and a half hours. We didn't see anyone else out there, although we had a set of tracks to follow. I was congested from my Friday allergy shots, and wasn't having the best day physically — but it certainly was a gorgeous outing.