The hour after sunset is when you can find some of the most beautiful and varied tones and colors in the darkening sky. It's a more nuanced beauty than the direct light and bright colors of the setting sun, but it's still my favorite time to be in the mountains – the air is still and cool, and most other people have headed back to their cars or off to camp. I, on the other hand, love to linger on the mountaintops as long as I can, hiking back down by headlamp. Here are four images taken with a telephoto lens from the summit of Mt. Jo over the Adirondack High Peaks.