Devils Tower

is a natural stone formation that rises 1267 feet in the of
northeastern Wyoming. President proclaimed the first
in 1906.
Nobody knows how this unusual rock was formed, but geologists have put forth several
theories. They agree that is an “igneous intrusion”, which is magma that
hardened while still underground. This may have happened 60 million years ago, which
is when the Rocky Mountains were forming too. Scientists disagree about how this
magma eventually came to tower so high above its surroundings. A popular theory sets
as the neck of an old volcano. In this theory, the rest of the mountain
eroded away.
Weather continues to erode the tower. Cracks fill with ice and expand, and rocks then fall
to the ground. Piles of broken lava columns at the base of the tower indicate that it used
to be larger.
Native Americans also have stories to explain s. In their stories, the tower is
called Mateo Tepee, meaning . The rock’s long vertical cracks
reminded people of scratches that a bear might make. In a Kiowa story, for example,
seven little girls were playing far from their village when bears started to chase them. The
girls ran to a small rock and prayed for it to save them. The rock started to push upwards,
higher and higher until the girls were out of the bears’ reach. The bears scratched at the
rock and broke their claws. The Kiowa say that these little girls were pushed upward to
the sky; they now form a seven-star constellation. Another version of the story has little
boys chased by bears, and an eagle carries them home from the tall rock.
appears insurmountable to many. Henry Newt, who was part of area’s first
geological survey, wrote in 1875: “Its summit is so entirely inaccessible that the energetic
explorer… standing at its base could only look upward in despair of ever planting his feet
on the top.” Nonetheless, a Wyoming rancher named ascended the tower
in 1893; he climbed up with the aid of wooden pegs that he’d drive into cracks. A more
professional ascent was made in 1937 by a small party representing the American Alpine
Club. The climb can be made relatively easy or extremely challenging according to the
path someone chooses.
The tower is still sacred to several Native American Plains tribes, including the Lakota
Sioux, Cheyenne, and Kiowa. There have been conflicts between who want to
climb the tower and indigenous people who hold ceremonies around the monument.
There is now a compromise that involves a voluntary climbing ban in June, which is
when the tribes traditionally use the tower most. This compromise has not satisfied
everyone, since climbers see the rock as federal land and Native Americans see ascension
of the monument as desecration. About 4,000 people climb every year.
According to a PBS documentary called In Light of , most agree not to climb
during the month of ceremonies.

The region is also known for its colorful rock layers. The oldest visible rocks have been
dated to the Triassic period, or about 200 million years ago. These are dark red sandstone
and siltstone, colored by oxidized iron. A thin white band of -era gypsum follows.
People can also spot gray-green shale, red mudstone, and yellow sandstone.

The was probably first aware of after an 1859 Yellowstone
expedition led by Captain . In 1875 Colonel Richard Dodge led a
geological survey to the rock. It was Dodge who named ; he thought that
natives called it “Bad God’s Tower”. Congress designated the area a US forest reserve in
1892, and by 1906 it was the country’s first national monument. In addition to the tower,
the park includes the Belle Fourche River and 1347 acres of pine forests and grasslands,
home to deer, prairie dogs, and other animals.
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