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The Grand Geyser erupts every 7-15 hours for a duration of 9-12 minutes, the eruption can reach a height of 200 feet.
Old faithful eruption time varies between 65- 90 minutes Old Faitful geyser image is in the early part of the gallery.
For best resolution view in original
Images entered in this gallery are copyright of Nestor Derkach
janescottcumming | 15-Oct-2010 23:07 | |