A Sierra Club Naturalist's Guide to the Southern Rockies: The Rocky Mountain Regions of Southern Wyoming, Colorado, and Northern New Mexico

Benedict draws from countless sources and personal experience in this book to assemble the most complete handheld book on the Southern Rockies. If you live in Colorado and consider yourself a naturalist, this should already be on your shelf, and in your backpack as you trek around. I use mine so much I had to tape the cover to protect it. The writing is crisp and factual, yet engrossing. Coverage is complete: from geology to ornithology, botany to meteorology, it's all here in ample detail for the interested lay person. Highly recommended... one of the best in class.