Hiking]]> Rocky Mountain National Park (Colo.)]]> Nicholas B. Clinch]]> jpg]]> Hiking]]> Rocky Mountain National Park (Colo.)]]> Nicholas B. Clinch]]> jpg]]> Antarctica--Discovery and exploration]]> Nicholas B. Clinch]]> jpg]]> Antarctica, 1966 to 1967]]> Antarctica--Discovery and exploration]]> Nicholas B. Clinch]]> jpg]]> Antarctica, 1966 to 1967]]> Yosemite National Park (Calif.)]]> dome]]> river]]> snow]]> American Alpine Club Photo Collection]]> American Alpine Club Photo Collection]]> .jpg]]> California, 1900 to 1930]]>