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The rise of mountains and the spread of deserts has marked the geologic history of Arizona. Landscapes that we see today are here because of land...

The third edition of this popular guide is now even better it s full color. Colorado s multihued rocks from white and red sandstones to green sh...

Ride along with geologists Pamela Gore and Bill Witherspoon on this extraordinary tour of the Peach State s varied terrain. In 35 detailed and de...

In this odd and spectacular north country, contorted rocks reveal the strain of colliding continents, the heat of molten intrusions, and the weig...

Driving through Nevada, you may be miles from nowhere, but you are never far from an interesting rock, the shoreline of an ice age lake, or an a...

From the glacially scoured quartzite ridge that hosts the Appalachian Trail to the spectacular columnar basalt of Orange Mountain, New Jersey pac...

California s geology makes headlines when faults shift, volcanoes puff steam, and coastal bluffs fall into the sea. The latest edition of this po...

When the first edition of Roadside Geology of Oregon was published in 1978, it was revolutionary�the first book in a series designed to educate, in...

South Dakota fills the landscape with geologic diversity, from the glaciated rolling prairies in the east, across the Missouri River, and west to...

Since Mountain Press started the Roadside Geology series forty years ago, southern Californians have been waiting for an RG of their own. During...

Arches National Park. Bryce Canyon. Zion. When one thinks of Utah, it s rocks and iconic landforms preserved in a nearly endless list of nationa...

With more than 10,000 geysers, hot springs, fumaroles, and mud pots, as well as cubic mile upon cubic mile of once-incendiary rhyolite, the land...