Trees of the Rocky Mountains will fill a gap in Falcon's nature category by providing readers with a dedicated guidebook to identifying the most prominent tree species occurring in the Rocky Mountain region of North America. This guide will cover a selection of the most prominent native and naturalized tree species of the iconic Rocky Mountain region spanning Colorado, Wyoming, Montana, Utah, and Idaho.

Each species will get a full description detailing shape and form, physical characteristics, habitat, wildlife uses, and information on identifying potential signs of disease and damage. Each species entry will include multiple photographs, detailing the tree's bark, needles/leaves, seeds/pinecones, and overall appearance.