On the Loose is a journey through the American West, led by two adventurous brothers, Terry and Renny Russell. It is a chronicle of triumph and tragedy-the triumph of gaining an insight about oneself through an understanding of the natural world; the tragedy of seeing its splendor increasingly threatened by people who don"t know or don"t care. The color and black-and-white photographs, all taken by the authors, capture Yosemite, Point Reyes, the High Sierra, the Great Basin, and Glen Canyon in the 1950s and 1960s.