There are a lot of local businesses and publications around here with “Alpenglow” in the name. I didn’t really know exactly what they meant until I moved here and saw the evening sky. The photo to the left pretty much sums it up.
For the scientist, you can read the details at wikipedia, but the general rule is this:
Although the term may be loosely applied to any sunrise or sunset light seen on the mountains, true alpenglow is not direct sunlight and is only observed after sunset or before sunrise.
Come on up and get a glimpse. And your 4th night is free.