Rocky Moutain National Park, just over 13,000ft. I used a Nikon D100 with the Nikkor 12-24mm F4 lens, set at ISO 200, F 8.0 @1/250sec. Taken at 10:57a.m. on 09-04-08. I was facing in the total opposite direction looking for a totally different picture, when my wife said turn around!