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Longhorn Cavern State Park features Longhorn Cavern, a Texas Hill Country wonder created over thousands of years by the dissolving and cutting action of water on the limestone bedrock of the area. Fossil remains show that many Ice Age animals once occupied the cave.

Our earliest records indicate that the Comanche Indians were the first to use the cavern. They came in about 400 years or so before anyone else did.

In more recent history, the cavern was used as a Confederate stronghold where gunpowder was manufactured in secret during the Civil War. The cavern is also rumored to have been the hideout of Sam Bass, a legendary Texas outlaw.

Longhorn Cavern is one of the few
river-formed caverns in Texas.

The Stairs leading into this entrance were built by the Civilian Conservation Corps in the 1930's.