This is the ultimate guide to big mammals of the Rocky Mountains—Elk, Grizzly Bears, Wolves, Bison, Black Bears, Moose, Bighorn Sheep, Mountain Lions, and Whi

Revised, updated, and with more than 80 new color photographs, Rocky Mountain Mammals, Third Edition is a nontechnical guide to the mammals of the Southern Rock

"Organized by track group for quick and easy identification, this guide has 58 entries covering more than 115 species of four-legged mammals commonly found in t

Revised, updated, and with more than 80 new color photographs, Rocky Mountain Mammals, Third Edition is a nontechnical guide to the mammals of the Southern Rock

Roger Tory Peterson's unique system shows exactly what features to look for to tell one species from another. Peterson Field Guides are designed to work in the