Grand Geyser is a fountain geyser in the Upper Geyser Basin of Yellowstone National Park in the United States. It is the tallest predictable geyser known. It was named by Dr. F.V. Hayden in 1871.
Wikipedia https://en.wikipedia.org/wiki/Grand_Geyser
Address 82190, United States
Coordinates 44°28'0.035" N -110°50'12.984" E
