Take a look at this: a phenomenal sunrise of Mt. Rainier in Washington state, where the volcano actually casts a sky shadow on the clouds!
From Seattle’s Komo News:
Mt. Rainier has quite a few tricks up its sleeve for adding additional beauty to the Pacific Northwest, from the majestic snow-capped peaks, to the mysterious lenticular cloud displays. Another trick it pulls off during the fall and winter is to cast a big shadow on a brilliant sunrise. It only happens when the sun rises farther to the south as we head toward the winter solstice and has to be in the exact position to where Rainier blocks the first rays of morning light.