Chromatic Spring is a hot spring

Hot spring

A hot spring is a spring that is produced by the emergence of geothermally heated groundwater from the Earth's crust. There are geothermal hot springs in many locations all over the crust of the earth.-Definitions:...

 in the Upper Geyser Basin of Yellowstone National Park

Yellowstone National Park

Yellowstone National Park, established by the U.S. Congress and signed into law by President Ulysses S. Grant on March 1, 1872, is a national park located primarily in the U.S. state of Wyoming, although it also extends into Montana and Idaho...

 in the United States

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

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It is connected to the nearby Beauty Pool

Beauty Pool

Beauty Pool is a hot spring in the Upper Geyser Basin of Yellowstone National Park in the United States.It is connected to the nearby Chromatic Spring. When the water level in one of the two pools rises and overflows, the water level in the other decreases. These fluctuations in water level take...

. When the water level in one of the two pools rises and overflows, the water level in the other decreases. These fluctuations in water level take place over periods ranging from a few weeks to several years. During this energy shift, the temperatures can change about 10 °F (-12.2 °C). Its temperature ranges from 164 to 175 °F (73.3 to 79.4 C).