sentence: Geysers are made in special geological conditions.
sentences_after: Only a few places on Earth have these conditions. Because of this, geysers are not very common. One place is the Yellowstone National Park, which is the remains of a gigantic volcano. Another is Iceland, which sits on top of the Mid-Atlantic Ridge, where new Earth's crust is formed.
concept_name: geyser
headings: Geyser Causes
categories: Geology