What was once graffiti is now part of the historic legacy of Mammoth Cave. This view of a wall in the Snowball Room shows gray limestone above and brown, gypsum-laden, cave earth below.
 |
|
|
||
|
|
||
|
What was once graffiti is now part of the historic legacy of Mammoth Cave. This view of a wall in the Snowball Room shows gray limestone above and brown, gypsum-laden, cave earth below. |
||
|