See the context of this sign.

Fossil Butte National Monument

Nowhere can a more complete, more exquisitely
preserved record of a primeval lake be seen than
in Fossil Butte National Monument.

For several million years - about fifty million years
ago - Fossil Lake gradually filled with sediments,
burying and fossilizing dead plants, fish and
animals that had sunk to the bottom.

Today, erosion and human activity have exposed
that fossil-rich limestone, providing a look into
a lost world.

Explore the life of Fossil Lake
by touring the visitor center,
and by hiking the Historic
Quarry Trail and the Fossil
Lake Quarry Trail.

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