---Welcome to the AZ Master Naturalist Blog---News, references, and links for Naturalists and candidates. ---Our mission is creating a corps of well-informed volunteers to deliver quality environmental education programs and to promote stewardship of Arizona's watersheds and natural environment. This is a UofA Cooperative Extension Services Program.
Picture Canyon was first studied in a systematic archeological way in 1928-9 by Dr Harold Colton, founder of the Museum of Northern Arizona. His survey of prehistoric cultural sites in northern Arizona was published in 1931.