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Welcome
to Point of Interest Road
Signs! A
collection of photos of road and trail signs. Click
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Yellowstone
National Park - Giant Geyser
Location
of sign - Upper Geyser Basin near Old Faithful in Yellowstone National Park
Photo
taken June 2008
Close-up
view of sign
Wide
view of sign
Text
of sign:
Giant Geyser
When active, Giant Geyser is one of the largest in the world. Historic
accounts describe Giant's eruptions soaring to heights of
250
to 300 feet. However, recent eruptions have ranged from 200 to 250
feet.
Giant
Geyser displays cycles of activity and dormancy. The unpredictability
of Giant is due, in part, to interconnections between
it
and the geysers and hot springs of the nearby Grotto Group.
Fast Facts:
Giant
is a cone-type geyser.
When
active, Giant's eruptions may reach heights of 200 to 250 feet.
Giant's
eruptions can last from 1 to 1.5 hours and expel more than a million gallons
of water.
Shrouded in Antiquity
The
large sinter shroud surrounding Giant's vent may be an indication of the
geyser's great age. The slow accumulation of mineral
(1
to 2 inches every 100 years) indicates that Giant could be thousands of years
old.
This
exhibit made possible by a generous grant from the Yellowstone Association.
Graphics
on the sign
In
addition to the text there is a picture of Giant Geyser erupting and a
picture of a 1870's woodcut of Giant Geyser.
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out by submitting
a photo!
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