National Monument · Colorado, United States

Florissant Fossil Beds National Monument

Florissant Fossil Beds National Monument is a national monument in Colorado, United States, covering 6,278 acres (2,541 ha), established in 1969.

Florissant Fossil Beds National Monument
Florissant Fossil Beds National Monument.

Photo: Kent G. Budge via Wikimedia Commons, CC0. Cropped and resized for display.

Park facts

Park typeNational Monument
LocationColorado, United States
Area6,278 acres (2,541 ha)
Established1969
Managed byNational Park Service

Every fact above is taken from the sources listed below; anything no source states is left blank rather than guessed.

About Florissant Fossil Beds National Monument

The Florissant Formation is a sedimentary geologic formation outcropping around Florissant, Teller County, Colorado. The formation is noted for the abundant and exceptionally preserved insect and plant fossils that are found in the mudstones and shales. Based on argon radiometric dating, the formation is Eocene (approximately 34 million years old ) in age and has been interpreted as a lake environment. The fossils have been preserved because of the interaction of the volcanic ash from the nearby Thirtynine Mile volcanic field with diatoms in the lake, causing a diatom bloom.

Description from the park's Wikipedia article (CC BY-SA), linked in the sources below.

Planning your visit

What to do

Canoeing

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Frequently asked questions

Where is Florissant Fossil Beds National Monument?

Florissant Fossil Beds National Monument is in Colorado, United States.

When was Florissant Fossil Beds National Monument established?

Florissant Fossil Beds National Monument was established in 1969, per the source listed at the foot of this page.

How big is Florissant Fossil Beds National Monument?

Florissant Fossil Beds National Monument covers 6,278 acres (2,541 ha).

Sources