The Riverbluff Cave is a

paleontological Paleontology (), also spelled palaeontology or palæontology, is the scientific study of life that existed prior to, and sometimes including, the start of the Holocene epoch (geology), epoch (roughly 11,700 years before present). It includes t ...

site discovered in the

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...

, near

Springfield, Missouri Springfield is the third largest city in the U.S. state of Missouri and the county seat of Greene County. The city's population was 169,176 at the 2020 census. It is the principal city of the Springfield metropolitan area, which had an estimat ...

. The entrance is filled with

stalactites A stalactite (, ; from the Greek 'stalaktos' ('dripping') via ''stalassein'' ('to drip') is a mineral formation that hangs from the ceiling of caves, hot springs, or man-made structures such as bridges and mines. Any material that is soluble an ...

stalagmite A stalagmite (, ; from the Greek , from , "dropping, trickling") is a type of rock formation that rises from the floor of a cave due to the accumulation of material deposited on the floor from ceiling drippings. Stalagmites are typically ...

s and columns. The cave is about 830,000 years old (making it the oldest known fossil cave site in the US) and 610 m long, featuring

Pleistocene The Pleistocene ( , often referred to as the ''Ice age'') is the geological Epoch (geology), epoch that lasted from about 2,580,000 to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations. Before a change was fina ...

fossils, notably of the

short-faced bear The Tremarctinae or short-faced bears is a subfamily of Ursidae that contains one living representative, the spectacled bear (''Tremarctos ornatus'') of South America, and several extinct species from four genera: the Florida spectacled bear ('' ...

(''Artcodus simus'') the largest

bear Bears are carnivoran mammals of the family Ursidae. They are classified as caniforms, or doglike carnivorans. Although only eight species of bears are extant, they are widespread, appearing in a wide variety of habitats throughout the Nor ...

species on the Earth (around 5–6 feet tall at the shoulder and weighing in the area of 2,000 pounds). The cave Is located in the widespread

karst Karst is a topography formed from the dissolution of soluble rocks such as limestone, dolomite, and gypsum. It is characterized by underground drainage systems with sinkholes and caves. It has also been documented for more weathering-resistant ro ...

landscape of the

Springfield Plateau Springfield may refer to: * Springfield (toponym), the place name in general Places and locations Australia * Springfield, New South Wales (Central Coast) * Springfield, New South Wales (Snowy Monaro Regional Council) * Springfield, Queenslan ...

of the western Missouri

Ozarks The Ozarks, also known as the Ozark Mountains, Ozark Highlands or Ozark Plateau, is a physiographic region in the U.S. states of Missouri, Arkansas, Oklahoma and the extreme southeastern corner of Kansas. The Ozarks cover a significant port ...

and developed within the soluble Mississippian

limestone Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms whe ...

s of the region. It was unveiled accidentally on September 11, 2001, when engineers were blasting for a new road. The cave is not open to the public, but is the world's second cave to be wired for virtual tours.Springfield-Greene County Library Board of Trustees
/ref> The Riverbluff Cave Field House opened in 2009 with exhibits of fossils from Riverbluff Cave and from around the world. Just about 50 feet away from the cave is a

museum A museum ( ; plural museums or, rarely, musea) is a building or institution that cares for and displays a collection of artifacts and other objects of artistic, cultural, historical, or scientific importance. Many public museums make these ...

which holds multiple rocks and fossils.

References

External links

RiverbluffCave.com''Riverbluff Cave: A Walk through the Ice Age''
* ttps://www.npr.org/templates/story/story.php?storyId=7283494 Missouri Cave Is an Ice Age Time Capsulefrom American National Public Radio Caves of Missouri 2001 in science Museums in Greene County, Missouri Natural history museums in Missouri Protected areas of Greene County, Missouri Paleontology in Missouri Fossil museums {{GreeneCountyMO-geo-stub