Columbia subject headings:
Geological and Geographical Survey of the Territories (U.S.)
Holy Cross, Mount of the (Colo.)
Jackson, William Henry, 1843-1942.
Harvard subject headings:
Geological and Geographical Survey of the Territories (U.S.)
Holy Cross, Mount of the (Colo.)
Holy Cross, Mount of the.
Jackson, William Henry, 1843-1942.
Princeton subject headings:
Geological and Geographical Survey of the Territories (U.S.)
Holy Cross, Mount of the.
Jackson, William Henry, 1843-1942.