Quotes About Fumaroles

there were three kinds of thermal features in the world: geysers, mud pots, and fumaroles (steam vents), and Yellowstone featured them all.

A what?" Danielle asked. "A fumarole. A steam vent. There are four kinds of thermal features in the world and all of them are in Yellowstone: geysers, mudpots, hot springs and fumaroles.

three kinds of thermal features in the world: geysers, mud pots, and fumaroles (steam vents), and Yellowstone featured them all.