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

    Timpanogos Cave

    National Monument Utah

There are park alerts in effect.
show Alerts »
  • Caves closed for the season

    Timpanogos Cave National Monument caves, cave trail, and visitor center are closed for the season. Caves are scheduled to open again mid-May 2015.

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?

Helictite

Timpanogos Cave is known for its high concentration of helictites - a spiraling cave formation that seems to defy gravity. Helictites are formed when calcite crystals and dissolved impurities are forced out of a tiny central canal in the helictite by hydrostatic pressure.