Interpretive naturalist, writer, educator and reptile specialist Alan St. John of Bend, Oregon, has crafted a richly photographed guide to the reptiles, snakes and turtles found in Alaska, British Columbia, Washington, Oregon and parts of Montana, Idaho, Nevada, Utah, Wyoming, Colorado and California. Each of the book's 42 accounts features photographs of the animal, as well as range maps and notes on identification, variation, distribution, habitat, behavior and similar species. The guide also includes information about three introduced species. The book has a strongly personal and accessible quality through St. John's field notes of his own encounters with each of the featured species.