Bill Plotkin, Ph.D., is a depth psychologist, wilderness guide, and agent of cultural evolution. As founder of western Colorado’s Animas Valley Institute in 1981, he has guided thousands of seekers through nature-based initiatory passages, including a contemporary, Western adaptation of the pan-cultural vision fast. Previously, he has been a research psychologist (studying non-ordinary states of consciousness), professor of psychology, psychotherapist, rock musician, and whitewater river guide.

In 1979, on a solo winter ascent of an Adirondack peak, Bill experienced a call to adventure, leading him to abandon academia in search of his true calling. Bill is the author of Soulcraft: Crossing into the Mysteries of Nature and Psyche (an experiential guidebook), Nature and the Human Soul: Cultivating Wholeness and Community in a Fragmented World (a nature-based stage model of human development through the entire lifespan), Wild Mind: A Field Guide to the Human Psyche (an ecocentric map of the psyche — for healing, growing whole, and cultural transformation), and The Journey of Soul Initiation: A Field Guide for Visionaries, Evolutionaries, and Revolutionaries (an experiential guidebook for the descent to soul). He has a doctorate in psychology from the University of Colorado at Boulder.