The Tetons and the Snake River, Grand Teton National Park, Wyoming, 1942 by Ansel Adams: 27 1/10 x 23 1/10 Print Reproduction

This breath-taking shot was taken as part of a project commissioned by the Dept. of Interior in 1941. Ansel's signed original (part of a collection of 226 signed originals) is kept at the National Archive among the Records of the National Park Service.