The Cascade Mountains have been volcanically active for 46 million years - but the volcanoes we know, like Mounts Adams and Rainier, are very young. So where are the older volcanoes? Well, their bones are scattered throughout the low country of the Cascades, if you know where to look. Let's explore with Nick Zentner. | Cascade PBS

83K views · 1.3K reactions | High above Lake Tahoe and Cascade Lake...

174K views · 1.2K reactions | Sitting right on the edge of the Columbia River near Vancouver, Washington, Beacon Rock shoots 800 feet straight up from the valley floor. While it’s made of the same type of rock as the gorge’s surrounding walls, it tells a much newer story. Watch more Nick on the Rocks on the Cascade PBS app. https://bitl.to/3fue | Cascade PBS | Facebook