old faithful

Noun
  1. A geyser in Yellowstone National Park that erupts for about 4 minutes about every 65 minutes (synset 109401090)
    is an instance of: geyser - a spring that discharges hot water and steam
    is a part of: yellowstone national park - the first national park in the United States; located in the border area between Wyoming and Montana and Idaho; spectacular wilderness; famous for Old Faithful geyser and for buffalo and bears

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