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 1943]]> Mammoth Cave National Park (Ky.)]]> Great Onyx Cave]]> Caves]]> Unknown]]> American Alpine Club Photo Collection]]> .jpg]]> Kentucky, 1900 to 1944]]> Caves]]> Mammoth Cave National Park (Ky.)]]> Great Onyx Cave]]> Unknown]]> American Alpine Club Photo Collection]]> .jpg]]> Kentucky, 1900 to 1945]]> Katahdin, Mount (Me.)]]> Baxter State Park]]> Unknown]]> American Alpine Club Photo Collection]]> .jpg]]> Maine, 1900 to 1930]]> Katahdin, Mount (Me.)]]> Baxter State Park (Me.)]]> Unknown]]> American Alpine Club Photo Collection]]> .jpg]]> Maine, 1900 to 1930]]> Katahdin, Mount (Me.)]]> Baxter State Park (Me.)]]> Unknown]]> American Alpine Club Photo Collection]]> .jpg]]> Maine, 1900 to 1930]]> Katahdin, Mount (Me.)]]> Baxter State Park (Me.)]]> Penobscot River, West Branch (Me.)]]> Unknown]]> American Alpine Club Photo Collection]]> .jpg]]> Maine, 1900 to 1930]]> Katahdin, Mount (Me.)]]> Penobscot River, West Branch (Me.)]]> Baxter State Park (Me.)]]> Unknown]]> American Alpine Club Photo Collection]]> .jpg]]> Maine, 1900 to 1930]]> Katahdin, Mount (Me.)]]> Baxter State Park (Me.)]]> Unknown]]> American Alpine Club Photo Collection]]> .jpg]]> Maine, 1900 to 1930]]>