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Hell Creek Formation
English Wikipedia - The Free Encyclopedia
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Hell Creek Formation
The
Hell Creek Formation
is an intensively-studied division of mostly
Upper Cretaceous
and some lower
Paleocene
rocks in North America, named for exposures studied along
Hell Creek
, near
Jordan, Montana
. The
formation
includes portions of
Montana
,
North Dakota
,
South Dakota
, and
Wyoming
. In Montana, the Hell Creek Formation overlies the
Fox Hills Formation
. "Pompey's Pillar" at the
Pompeys Pillar National Monument
is a small isolated section of the Hell Creek Formation.
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