Penn's Cave #2
IN THE GARDEN OF THE GODS -- PENN'S CAVE_NP
The Garden of The Gods Penn's Cave, Pa._NP
NC_"The Giant Columns" PENN'S CAVE Penn Cave, "American's Only All Water Cavern," at Centre Hall, Pa. A Boatride of One Mile Underground._NP_NP
NC_"Giant Columns" PENN'S CAVE Penn Cave, "American's Only All Water Cavern," at Centre Hall, Pa. A Boatride of One Mile Underground._NP_NP
Niagara Falls, Penn's Cave_NP
Niagara Falls Penn's Cave, Pa._NP
AT THE LEOPARD SKINS PENN'S CAVE_pm PITTSBURGH 1943
THE NEEDLES AT STRAIT OF GIBALTAR PENN'S CAVE_NP
NC_"Stalactite and Stalagmite Formations" PENN'S CAVE Penn's Cave, "America's Only All Water Cavern, Centre Hall, Pa. A Boatride of One Mile Underground_pm CRPM
Stalactite and Stalagmite Formations, Penn's Cave_NP
The Statue of Liberty, Penn's Cave_NP
THE STATUE OF LIBERTY -- PENN'S CAVE._NP
The Statue of Liberty Penn's Cave, Pa._NP
The Straight of Gibraltar, Penn's Cave_NP
STRAIT OF GIBALTAR -- PENN'S CAVE._NP
IN THE GARDEN OF THE GODS PENN'S CAVE_NP
IN THE GHOST ROOM PENN'S CAVE_NP
The Twin Pillars Penn's Cave, Pa._NP
The Water Falls Penn's Cave, Pa._NP
NC_"The Strait of Gibraltar" PENN'S CAVE Penn's Cave, "America's Only All Water Cavern," at Centre Hall, Pa. A Boatride of One Mile Underground._NP
NC_"Cave Entrance Onto Lake Nita-Nee" PENN'S CAVE Penn's Cave, "America's Only All Water Cavern," at Centre Hall, Pa. A Boatride of One Mile Underground._NP
JUST THROUGH THE TUNNEL PENN'S CAVE_NP
WHERE THE WATER COMES OUT OF PENN'S CAVE_pm SPRING MILLS 1911
PENN'S CREEK ON PENN'S CAVE PROPERTY, FINE TROUT STREAM._NP
WHERE THE WATER COMES OUT OF PENN'S CAVE._NP
WHERE THE WATER COMES OUT OF CAVE._NP
WHERE THE WATER COMES OUT OF PENN'S CAVE_HAND-COLORED, printed on back_NP
Visitors out of Cave at rear end on Penn's Cave Lake_NP
NC_"Lake Nitanee" PENN'S CAVE_NP
NC_"Lake Nittanee" PENN'S CAVE Penn's Cave, "America's Only All Water Cavern," at Centre Hall, Pa. A Boatride of One Mile Underground._NP
Visitors and Swan, on the Lake Penns Cave_pm CENTRE HALL 1949
NC_"Lake Nittanee" Penn's Cave Penn's Cave, "America's Only All Water Cavern," at Centre Hall, Pa. A Boatride of One Mile Underground._NP
