• A water drop clings onto the edge of a orange stalactite, surrounded by white stalactites.

    Timpanogos Cave

    National Monument Utah

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  • Seasonal Closure

    2014 Season: The caves and visitor center will be closed for the winter until May 5. The visitor center will be open on May 5, and the cave will open for tours May 10.

Fossils

Coral Fossil

Coral fossil in Hansen Cave

Around 340 million years ago, a warm shallow sea covered most parts of what would later become Utah . As small marine animals died, their skeletons settled in the sediments. Going through cementation and compaction, the sediments hardened into limestone rock. Upon close inspection, the fossils of these ancient marine animals are now visible in the layers of rock. These fossils can be seen near the entrance to Hansen Cave and inside the cave. The most common types of fossils are rugose (or horn) coral, tabulate coral, crinoids, and brachiopods. These oddly shaped, white deposits in the rock serve as evidence of a constantly changing planet.





Did You Know?

frost cave formation

Frostwork, like it's name depicts, resembles hoarfrost growing outside on a foggy winter day. Most frostwork found in Timpanogos Cave is formed from aragonite, an unstable form of calcium carbonate. The delicate nature of these tiny crystals makes them particularly susceptible to damage and vandalism.