It's be kind of a rough week photographically. My TS-E 24mm f/3.5L ii broke on the outing where I made this image (the shift locking knob fell right off) and someone stole my crampons when I left the outside this cave.
The very next day, I went on a great hike across the Mt Juneau ridge carrying a camera body, three lenses, and a tripod. What I wasn't carrying was a memory card of any type (iphone photos only on that trip...despite the sore shoulders). Still, I laughed out loud when I saw the LCD on my camera read "No CF Card".