I recently found a PDF file of the original map of Carroll Cave. This was done by James Helwig in the early 1960s. It shows about 10 miles of cave.
Zoom in on this map. There is quite a bit of details for a map this old.
I recently found a PDF file of the original map of Carroll Cave. This was done by James Helwig in the early 1960s. It shows about 10 miles of cave.
Zoom in on this map. There is quite a bit of details for a map this old.