Washington Geology

Explore Earth’s natural treasures, from their primeval origins to traditional uses and modern-day appeal with this illustrated guide to rocks, minerals, crystals, gems and more!

Continents move. Glacial cycles come and go. Mountains spring up and erode away. We live on a planet that is constantly in motion-except we see it in extreme slow motion. In this exciting course of 48 half-hour lectures, you effectively speed up the action to witness the history of our planet unfold in spectacular detail, learning what the Earth is made of, where it came from, and, above all, how it works.