National Audubon Society: Field Guide to Rocks & Minerals Bears Ears ABSTRACT The drilling of seven

ABSTRACT The drilling of seven core holes by the Utah Geological and Mineral Survey was done under contract with the United States Geological Survey

and the hidden alcoves that shelter ancient ruins

Fueled by the new ideology of "Manifest Destiny"

Chock-full of detailed information

and drills

National Audubon Society: Field Guide to Rocks & Minerals Bears Ears ABSTRACT The drilling of sevenBy: National Audubon Society This first all photographic field guide features 794 full color images of all the important rocks, gems, and minerals of North America, showing their many variations of color and crystal form. The text provides descriptions of 200 minerals (including 20 classified as gemstones) and 40 rocks, as well as descriptions of the natural environments where they occur. Photographically organized by color for quick and easy