Ice climbing in Alaska, the Last Frontier. Though the same general objective exists in both ice climbing and rock climbing — to get to the top using a belay system — the skills involved are very different.
Prisoner - by Paul Zizka. Jeff Thom makes his way up the main ice flow at Panther Falls on a perfect moonlit night. It was a bit of tight squeeze getting to that spot, but I couldn't pass up the framing.