Robber Baron Cave

Useful Information

Location: San Antonio
Open: After appointment, once a year open day.
Fee: free.
Classification: SpeleologyKarst cave
Light: bring torch
Dimension: L=1,512 m.
Guided tours:
Address: Texas Cave Management Association (TCMA), P.O. Box 7427, Austin, TX 78713. E-mail: contact
As far as we know this information was accurate when it was published (see years in brackets), but may have changed since then.
Please check rates and details directly with the companies in question if you need more recent info.


1918 oldest dated graffitti in the cave.
1926 opened to the public.
1933 closed.
1970 managed by members of the Bexar Grotto.
1995 acquired by the Texas Cave Management Association.
2008 cave cleaned and closed by door.


The entrance to Robber Baron Cave is a large sinkhole. It was developed as a showcave in 1926, and until its closure in 1933 some 300,000 people have visited the cave. The visitors were lowered to the entrance with a cable car. The enromous number of visitors is probably a result of its location right in the middle of San Antonio.