Tre and Susan, two of my good friends from California, visited me this week in Yellowstone. We enjoyed warm autumn weather for most of their trip, but a storm system is moving into the region tonight. After reading the forecast calling for 6-12 inches of snow, my friends promptly fled south—I had to exercise self-control not to join them. My winter anxiety became heightened since the special weather statement announced, “fall weather is about to come to an end with a sudden switch to winter conditions.” I guess I’ll pack my shorts away until next July!

Here’s a selection of photos from our travels in the park:

Fall at Old Faithful Basin