Rivulets of viscous lava begin to harden as they cool, releasing tiny bubbles of air rising to the surface.
Sometimes I get so caught up on capturing the action on a wildfire that I fail to notice the little things all around me. Although fire is destructive, it can be quite mesmerizing and beautiful too! The most common comment I receive on this photo is that it looks like lava inside a volcano, but it is actually the inside of a smoldering stump.