When I saw the title for this week’s photo challenge, I immediately thought of some of the canyons I’ve visited.  The canyons of the southwestern US are great places to hike because there is often shade.  Because of the shade, light reaching the bottom is often reflected off higher sunlit walls, resulting in a warm glow.  In those canyons where water is present, the effect is magnified.

My photo comes from Zion National Park, Utah.  As sunrise lit up the high cliffs on a morning with clear blue skies, the North Fork of the Virgin River glowed from the light being cast onto it.