American Northwest Trip, 2017: Yellowstone’s Mud Volcano Area

The Mud Volcano Area of Yellowstone National Park is filled with hot springs and boiling pools of acid and mud, as well as the unmistakable rotten-egg odor of sulfur that bombards you as soon as you exit the car. The sulfur smell is abundant throughout the geyser basins and hot spring/caldron areas of the park. Nearly all of the pools of liquid in these photos would dissolve you instantly were you unfortunate enough to stumble into them.

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