🌋 Mount Shasta: A Giant Made of Four Volcanoes At first glance, Mount Shasta looks like one massive mountain. But get closer, and you’ll find something incredible: it’s actually made up of four separate volcanoes, stacked over time by powerful eruptions. With its jagged peaks, ancient lava domes, and deep glacial scars, Shasta stands as the largest stratovolcano by volume in the entire Cascade Range. Its tallest cone, Hotlum, last erupted about 200 years ago—sending mudflows and ash down the sl

122 reactions · 33 shares | All volcanoes in the Cascade Range of...

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Keep hiking along the Naches Loop Trail, and you'll start to notice chunks of dark granite scattered throughout the green bedrock. Where did that magma come from, and how old is it compared to Mount Rainier? | Cascade PBS