An introductory chapter briefly reviews Wyoming's geology followed by a series of road guides with the local particulars. The authors tell you what the rocks ar

Now, nearly 50 years after the first book, Mountain Press is releasing this completely revised full-color second edition that, like so many things in Montana, i

An introductory chapter briefly reviews Yellowstone's geology followed by a series of road guides with the local particulars. The authors tell you what the rock

Sponsored by a grant from the National Science Foundation to the Denver Museum of Natural History. Ever wondered what the ground below you was like millions of

This book gracefully ties the glaciated eastern half of the state, where artesian wells flow with water that fell as precipitation in the Black Hills, with the