This was a temporary break in the clouds of a threatening storm over the Grand Tetons. The photo was taken with a Nikon D 7100, Nikkor Zoom Lens (18-200 mm.), with a .9 Soft Lee Graduated Neutral Density Filter. Using a Gitzo Tripod and Arca-Swiss Head, the ISO was 200, F/16, 15th second exposure, and a Focal Length of 35 mm.