Historic Entrance
1890 - 1900
1890 - 1900
Mammoth Cave
Historic Entrance 1935
Historic Entrance 1935
Mammoth Cave
Historic Entrance 1945
Historic Entrance 1945
Exiting Cave in Winter
Iron Gate
Echo River
Saltpeter Pipes
Frozen Niagara
Civil Service -Ed Logsdon
Chimes Formation
Mummy
Ladies at Cork Screw