Some summers are destined to generate cherished memories. For married high school sweethearts Don and Nancy Hammond, they happened in 1972 and 1973, when Don's lifelong dream of being a United States Forest Service fire lookout came true.Don's first post, the Dunn Peak Lookout, was located eight miles northwest of Avery in Idaho's St. Joe National Forest. Once they arrived, they breathlessly lugged provisions and water up steep stairs to its fifteen-by-fifteen-foot cab two stories above the forest floor. Furnishings included a single bed, small bookcase, cabinet, and table, and a wood stove....