Clepsydra Geyser

Clepsydra Geyser, in Yellowstone National Park’s Lower Geyser Basin in northwestern Wyoming, differs from many of the park’s geysers by playing almost continuously rather than building to distinct eruptions. It sends water about 45 feet, or 14 meters, into the air. T. B. Comstock named it during the 1878 Captain Jones expedition, drawing on the Greek word for water clock because it was once known for a regular cycle of about every three minutes. After the 1959 Hebgen Lake earthquake altered hydrothermal systems across Yellowstone, Clepsydra’s behavior changed from short, predictable intervals to the near-constant activity for which it is now known.

Wyoming · United States