En-route to a summit of Oregon's Broken Top peak, I spent an extra night camped nearby to get some photo opportunities in the area below the mountain. On the lowest flanks of a large snowfield, I found this irresistible cavern carved out by rushing melt water. On a bright, clear day, the thin ceiling was especially luminescent, revealing its textures. Inside the chamber about 50-60 feet from the entrance, which provided some extra light, I made this image using a long exposure (tripod) in very dark conditions. I actually quite enjoyed standing around in the cold, wet conditions (although cramped), as it was unseasonably warm outside.