Caves]]> Wind Cave (S.D.)]]> Wind Cave National Park (S.D.)]]> Unknown]]> American Alpine Club Photo Collection]]> .jpg]]> South Dakota, 1900 to 1931]]> Caves]]> Wind Cave (S.D.)]]> Wind Cave National Park (S.D.)]]> Unknown]]> American Alpine Club Photo Collection]]> .jpg]]> South Dakota, 1900 to 1930]]> Caves]]> Mammoth Cave National Park (Ky.)]]> Great Onyx Cave]]> Unknown]]> American Alpine Club Photo Collection]]> .jpg]]> Kentucky, 1900 to 1945]]> Mammoth Cave National Park (Ky.)]]> Great Onyx Cave]]> Caves]]> Unknown]]> American Alpine Club Photo Collection]]> .jpg]]> Kentucky, 1900 to 1944]]> Mammoth Cave National Park (Ky.)]]> Great Onyx Cave]]> Caves]]> Unknown]]> American Alpine Club Photo Collection]]> .jpg]]> Kentucky, 1900 to 1943]]> Mammoth Cave National Park (Ky.)]]> Great Onyx Cave]]> Caves]]> Unknown]]> American Alpine Club Photo Collection]]> .jpg]]> Kentucky, 1900 to 1942]]> Mammoth Cave National Park (Ky.)]]> Great Onyx Cave]]> Caves]]> Unknown]]> American Alpine Club Photo Collection]]> .jpg]]> Kentucky, 1900 to 1941]]> Mammoth Cave National Park (Ky.)]]> Great Onyx Cave]]> Caves]]> Unknown]]> American Alpine Club Photo Collection]]> .jpg]]> Kentucky, 1900 to 1940]]> Mammoth Cave National Park (Ky.)]]> Great Onyx Cave]]> Caves]]> Unknown]]> American Alpine Club Photo Collection]]> .jpg]]> Kentucky, 1900 to 1939]]> Mammoth Cave National Park (Ky.)]]> Great Onyx Cave]]> Caves]]> Unknown]]> American Alpine Club Photo Collection]]> .jpg]]> Kentucky, 1900 to 1938]]>