Everybody loves Country Roads, Take me home. After belting out “WEST VIRGINIA, MOUNTAIN MAMA, TAKE ME HOME, COUNTRY ROADS”, there’s another lyric buried in there that always made my brain itch. “Life is old there, older than the trees / Younger than the mountains, blowing in the breeze.“

Nothing like getting slapped by a sly little bit of Lovecraftian prose in the most “gee, shucks” bit of Americana that’s ever existed. What do you mean, life older than trees? Trees are like… the furniture of the world, tall, strong, always there unless you cut them down. I mean, dinosaurs are depicted around trees, and dinosaurs are pretty damn old, right?

Let’s do the math. Fossil record says trees are about 390 million years old, and dinosaurs are about 240 million. So yeah, trees are old. But a quick google blows that all up: life is around 3.5 billion years old. Trees are only about 10% of the age of life itself. (Humans are absolute babies in comparison - 300k years for homo sapiens sapiens means we’ve been around for 0.0086% of the span of life on Earth.) Okay, I can accept that math, even if 3.5 billion years is hard to conceptualize.

On the other hand, that second line, “younger than the mountains,” tells me that Bob’s implying that those Blue Ridge Mountains are older than trees. Can that really be true? The Rockies are around 80 million years old — can the Appalachians be that much older?

The Blue Ridge Mountains are a piece of the Appalachian Mountains (which, if you’re on TikTok, might have sent a shiver down your spine). The Appalachian Mountains as a whole are 490 million years old, and that is only one of their configurations.

Those mountains are definitely older than the trees. But there’s more.

The Blue Ridge Mountains are made of some of the oldest components of the Appalachians. They’re about 1.1 billion years old. That’s about 30% of the age of life itself, and right around the time frame that sexual reproduction first showed up on Earth.

Those mountains are old as fuck.

But how is it that the Appalachians can be both 1.1 billion years old and 490 million years old? They’re two mountain ranges in a trench coat.

The billion-year-old layer was a massive range (the Grenvilles) built in the supercontinent before Pangea. Those mountains eroded for 400 million years, worn down to something like a ghost of today’s Appalachians. Then they were buried under lava and slept through 100 million years of geological chaos, until another collision started stacking a new mountain range on top of that old range, building the Appalachians and the Scottish Highlands. Scotland was sitting right next to Virginia back then.

More collisions kept piling on after that, until Africa showed up around 325 million years ago and finished the job, shoving that ancient buried rock all the way up to the surface. That's Old Rag Mountain in Shenandoah National Park. You can go stand on it.

Only after all of that did the Atlantic crack open and drag Scotland to the other side of the planet.

Built from the oldest surviving scar tissue on the continent, center of a supercontinent that no longer exists, and still standing; worn to nubs while almost everything else from that era is gone.