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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 - Castle Geyser
Location
of sign - Upper Geyser Basin trail in Yellowstone National Park
Photo
taken June 2008
Close-up
view of sign
Wide
view of sign
Text
of sign:
Castle Geyser
The
massive cone is a sign of old age. Eruption after eruption,
probably for thousands of years, scalding water has deposited this
silica
mineral formation. By contrast, Old Faithful's fledgling cone
may be only a few hundred years old.
Castle Geyser has dramatically changed its surroundings. By
flooding the area with hot silica-rich water, the geyser has
devoured
part
of a pine forest and turned it into a thermal desert. Tree
skeletons are entombed within the cone.
Castle
Geyser's eruptions are predictable; two per day are typically
recorded.
Thomas Moran painted this watercolor in 1872. Vandalism has
since destroyed some of Castle Geyser's original symmetry.
Walter
Trumbull, a member of the Washburn expedition, sketched Castle
Geyser in 1870.
Graphics
on the sign
In
addition to the text there is watercolor painting of Castle Geyser erupting
painted by Thomas Moran in 1872. There is also an
inset
picture of Castle Geyser sketched by Washburn expedition member Walter
Trumbull.
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