Old Faithful Geyser at Yellowstone National Park EarthCache
Old Faithful Geyser at Yellowstone National Park
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Old Faithful Geyser is the most predictable geyser in Yellowstone
National Park.
The Old Faithful Geyser, located in Yellowstone National Park, is
perhaps the world's most famous geyser. Old Faithful was named in
1870 by the Washburn Party and was the first geyser in the park to
receive a name. An eruption can shoot 3,700-8,400 gallons
(14,000-32,000 l) of boiling water to a height of 106-184 feet
(30-55 m) lasting from 1.5-5 minutes. The intervals range from
65-92 minutes with 91 minutes being the average. More than 137,000
eruptions have been recorded. Harry M. Woodward first described a
mathematical relationship between the duration and intervals of the
eruptions (1938). Old Faithful is not the tallest or largest geyser
in the park. With an error of 10 minutes, Old Faithful will erupt
65 minutes after an eruption lasting less than 2.5 minutes or 92
minutes after an eruption lasting more than 2.5 minutes.
To claim this cache, (1) Please attach a picture of the Old
Faithful Geyser area from the cords with or without you in it when
you log the find. (2) Email the owner the answer to the following
question:
Old Faithful is not the tallest geyser in Yellowstone Park. Which
geyser is the tallest, active geyser in Yellowstone Park?
Please send the answer when you log the cache so we get them in
close to the same time. We do check that everybody sends us the
answer. Logging this cache without sending us the answer will
result in your log entry being deleted.
DO NOT post the answer to the question in your
log, not even encrypted. Your log will be deleted if you
do.
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