ELI5: Explain Like I'm 5

Oregon's Matterhorns

Once upon a time, there was a big state called Oregon, and in Oregon, there were some mountains called the Matterhorns. Now, these mountains were named after another mountain in a faraway place called Switzerland, where there is a really tall and pointy mountain that looks like a pyramid. The Matterhorns in Oregon were also pointy, but they weren't quite as tall as the one in Switzerland.

Now, the Matterhorns in Oregon are famous because they have a really unique shape. You see, they were formed a long, long time ago when there was a giant volcano called Mount Hood nearby. This volcano erupted over and over again, sending out lots of lava and ash. The lava flowed down the side of the mountain and eventually hardened into rock.

But here's where it gets interesting. The rock that formed the Matterhorns didn't just harden in a normal way. It actually cooled in a really special way that made it crack and split into a bunch of individual columns. Imagine if you had a whole bunch of pencils standing next to each other, but they were all different sizes and lengths. That's kind of what the rock on the Matterhorns looks like.

And to make things even cooler, over the years, the wind and weather have eroded the sides of the Matterhorns, making them look even more like giant piles of pencils. So now, when you go to Oregon, you can see these really cool mountains that look like they're made of tiny columns of rock, all piled up on top of each other. And that's the story of the Matterhorns in Oregon!