I was passing through the Kootenay Rockies of Eastern British Columbia at dusk, just as the sun was setting. That occurs early during the winter months, around 4 - 5 pm. It was a clear day and I could see a bit of the alpenglow on the snow clad mountains.
The alpenglow is a band of reddish light observed in the direction opposite of the setting sun, and occurs just as the sun dips below the horizon. It's best appreciate on the mountain tips, as you see here.
The phenomenon lasts just a minute or two, then it's gone. But it was a lovely scene.