Combine hiking and geology interests to have more fun in on the trail

Easy-to-read, rhyming text depicts different animals dancing.

Explore the traces of the rise and fall of Colorado's mountains, volcanic eruptions, shifting seas, wind-blown deserts, and dinosaur haunts. This new destinatio

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, inspire, and

At 4,097 feet Marys Peak towers over other mountains in the Oregon Coast Range. Dr. Robert J. Lillie draws on his experience as a geology professor, graphic ill