Columbia subject headings:
Colorado--Gold discoveries.
Frontier and pioneer life--Colorado.
Tabor, Horace Austin Warner, 1830-1899.
Harvard subject headings:
Colorado--Gold discoveries.
Frontier and pioneer life--Colorado
Tabor, Horace Austin Warner, 1830-1899
Princeton subject headings:
Colorado--Gold discoveries.
Frontier and pioneer life--Colorado.
Tabor, Horace Austin Warner, 1830-1899.