Wausau pilot. [volume] (Wausau, Wis.) 1896-1940, 1920-09-07

ground set aside for the peoples forever. The
idea took. Congress established the Yellowstone
National park. March l, 1872
The establishment of the Yellowstone ma
tional park after 50 years of discoveries" was
the first time such a thing had been done in all
history. 1t the first national park in all the
world. The United States set the example which
practically all the civilized world has followed.
Uncle Sans 1920 Yellowstone Bulletin is
fascinating booklet Of 103 pages of text, maps
and illustrations. 1t contains everything that the
tourist needs to know. from how to get there to
time table of the geysers and from the different
kinds of trout to the automobile regulations. The
following items taken from the Introductory
pages
The Yellowstone National park was created by
the act of March l, 1872. 1t is approximately 62
miles long and "a miles wide giving an of
334S square miles. :. 142 720 1t is under
the control and supervision of the national park
service of the interior department
The Yellowstone is probably the best known Of
national parks. Its geysers celebrated the
world over because, for size, power, and variety
of action, well number. the region has no
competitor.
The Yellowstone National park is located in
northwestern Wyoming, encrOaching slightly upon
Montana and Idaho. 1t is our largest national
park The central portion is essentially a broad,
elevated, volcanic plateau, between 1000 and s 800
feet above sea level and with average elevation
of about 5000 feet. Surrounding It on the south,
east, north. and northwest are mountain ranges
with eliminating peaks and ridges rising from
1000 to 1000 feet above the general level of the
nclosed tableand.
The entire region is volcanic. Not only the sur
rounding mountains but the great interior pl;.il
is made of material once elected as ash and lava,
from depths far below the surface. Geological
speculation points to a crater which doubtless once
opened just west of Mount Washburn
There are five active geySer basins the Norris
the Lower. the Upper the Heart lake and Sho-
shone basins. all lying in the west and south CEN
trail parts of the park. The geysers exhibit large
variety of character and action. Some like Old
Faithful. spout at quite regular intervals longer
or shorter. Others are irregular Some burst up
ward with immense power Others shoot streams
ut angles or bubble and foam in action
Geysers are roughly speaking water voca-
noes. They occur only at places where the inter-
nal heat of the earth approaches close to the sur
face. Their action, for many years unex-
planned, and even now regarded with wonder by
many is simple. Water from the surface trick
ling through cracks in the rocks water from
subterranean springs collecting in the bottom of
the geysers crater down among the strata of in
tense heat, becomes itself intensely heated and
gives of steam. which expands and forces upward
the cooler water that lies above it.
At last the water In the bottom reaches so
great expansion under continued heat that the
less heated water above longer weigh it
down. it bursts upward with great violence
rising many feet in the air and continuing to play
until practically all the water in the crater has
been expelled.
Nearly the entire Yellowstone region is remark
able for its hot water phenomena The
prominent geySers confined TO three basins
lying near each other in the middle side of
the park but other hot water manifestations oc-
eur at widely separated points. Marvellous
" colored hot springs mud volcanoes. and other
strange phenomena frequent. At Mammoth,