This field guide provides the tools to identify animal signs in the Rocky Mountains. James C. Halfpenny's expertise, detailed in this book, aims to help readers distinguish between the droppings, tracks, and gait patterns of seventy species of mammals, birds, reptiles, and amphibians. The book offers clear descriptions and illustrations, along with an identification key and glossary, to aid in recognizing these signs. It is designed for practical use in the field, with measurements included on each page to assist in identification.

This book is presented as a practical and user-friendly field guide for identifying animal signs in the Rocky Mountains. The publisher's description highlights its utility for both novice and experienced outdoors enthusiasts, emphasizing the clear descriptions, illustrations, and included keys. The inclusion of specific measurements and documentation guidance suggests it is geared towards active field use. The scope covers a wide range of local fauna, aiming to make wildlife tracking accessible.