Photographer Jan Bainar was hiking through the Beskydy Mountains last week, a range that forms the border between Slovakia and the Czech Republic, when he stumbled onto something spectacular. Low temperatures, high winds, and a bit of precipitation caused frost to form on one side of the tree trunks through the entire forest. Any meteorologists want to chime in on this? Is this the same thing as hoar frost or frost flowers? Something different? You can see more of Bainar’s landscape photography over on 500px. Photo courtesy the photographer.