Scope and Contents From the Collection: Stephen Trimble (b. 1950) is a teacher, speaker, photographer, and writer, and a respected advocate for the environment. Trimble’s long career highlights his commitment to promoting environmental advocacy of the American West. This collection of his papers contains the personal and professional correspondence, manuscript drafts, research material, and memorabilia of the life of Trimble. Also included are the personal correspondences of Trimble’s parent’s, Don and Isabelle Trimble.