Artesia Geyser is a geyser

Geyser

A geyser is a spring characterized by intermittent discharge of water ejected turbulently and accompanied by a vapour phase . The word geyser comes from Geysir, the name of an erupting spring at Haukadalur, Iceland; that name, in turn, comes from the Icelandic verb geysa, "to gush", the verb...

 in the Lower 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...

. Artesia Geyser is part of the Black Warrior Group which includes Young Hopeful Geyser

Young Hopeful Geyser

Young Hopeful Geyser is a geyser in the Lower Geyser Basin of Yellowstone National Park in the United States.Young Hopeful Geyser is part of the Black Warrior Group which includes Artesia Geyser, Gray Bulger Geyser, and Steady Geyser. Young Hopeful is a collection of several vents which, depending...

, Gray Bulger Geyser, and Steady Geyser.

Geology

Artesia is a perpetual geyser that is never stops ejecting water from at least one of its two cones, usually no more than 5 ft (1.5 m). One vent is angeled toward the boardwalk that passes the geyser and the other is angled toward the Firehole River

Firehole River

The Firehole River is one of two major tributaries of the Madison River. It flows north approximately from its source in Madison Lake on the Continental Divide to join the Gibbon River at Madison Junction in Yellowstone National Park...

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During a period in 1999, one of the cones jetted to a distance of 12 ft (3.7 m) while the other emitted only steam.