Uncovering the Insane Activity of Yellowstone, You Won't Believe It!

It spewed so much material that it formed a 34 mile by 50 mile depression in the ground that is today known as the Yellowstone caldera. While Yellowstone has taken a break from super eruptions, it is still doing smaller ones. The youngest of these lava flows is the 70,000 year old pitchstone rhyolite flow in the southwest corner of Yellowstone National Park. But even with no current visible activity from Yellowstone, the volcano is still active and doing its thing in the background. In the past century, net inflation has caused the Yellowstone Lake's southern shores to have receded and the trees there now stand in water.