Imagine seeing the varied landscapes of the earth as they used to look throughout hundreds of millions of years of earth history. Tropical seas lap on the shore

An easy-to-read geology tutorial of the of the eastern Colorado Plateau, this book will answer all of your questions about how this stunning region was formed.

An overview of the Colorado Plateau's fossil remains of organisms that lived millions of years ago, featuring numerous illustrations and photographs.

A complete geology guidebook, with field trips to Boulder County, Colorado.Intended both for nature lovers and students of geology.Includes appendix on basic ge