Trees, Rocks, and Beyond: Crater Lake Eruption: 1615-1665

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Crater Lake’s unique beauty is one of Oregon’s greatest natural landmarks. But when did Mount Mazama erupt? Was it 7,700 years ago? Or more recently–maybe 350-400 years ago?

In this volume, Ralph E. Anderson explores this question and comes to a conclusion that may surprise the reader. What do the surrounding standing snags buried in ash have to reveal? Or what of the clues left by Mount Hood’s last eruption, found in Crater Lake’s ash? And what has Mount St. Helens’s recovery taught about nature’s resilience?

Anderson spent the last four years traveling the Pacific Northwest, gathering evidence to discuss Crater Lake’s Trees, Rocks, and Beyond.