The Dam:
Installed in the early 1900’s by Helderberg Cement Co. after 900 ft. of the cave was destroyed by mining for limestone.

The Old Boat:
The remains of Lester Howe’s boat that he used for transporting visitors across the Lake of Venus.

The Music Hall:
The sound was said to echo better in this area than any other part of the cave system.

The Fan:
The Fan used to circulate air, provide air conditioning to the lodge (originally Howe’s idea), and to prevent fumes caused by blasting at the quarry from entering the cave.

The Pipeline:
The pipeline is believed to have been installed by Howe himself. These were part of the efforts to improve the cave and increase business after the Civil War. One pipeline provided running water for the Cave House and the other provided the cave with gas lighting.

Congress Hall:
Named for its size and resonating qualities.

Gypsum:
Sparkling deposits that occur when limestone absorbs water. In the 1800s, gypsum was mined out of many caves for the production of gunpowder.

Franklin Avenue:
This is a long tall room with a seemingly bottomless pit on the left and the sound of rushing water echoing from below.

Signature Rock:
This massive flowstone formation, including hundreds of initials and notable signatures dates back to 1843– and is only revealed to those who visit*.