Shot of the Walnut Creek skyline as the remnants of an atomic bomb detonated in Nevada lights the sky. Small clip taped to back reads: "Walnut creek is caught in the eerie glare of this morning's atomic blast in Nevada, more than 400 miles away. Taken on a time exposure from the Linda Vista Tract west of Walnut Creek, this photograph shows the city in the foreground with shoulder of Mt. Diabloat left--Tribune photo by Les Snipes. Handwritten on back: "Feb. 6 1951 Atomic flare from Linda Vista Tract at west edge of Walnut Creek, city in foreground of Mt Diablo at left Sipes" Stamped on back: "Feb 6 1951