Columbia subject headings:
Harvard subject headings:
Gold mines and mining--Colorado--Pikes Peak Region--History--19th century.
Pikes Peak Region (Colo.)--Gold discoveries.
Pikes Peak Region (Colo.)--History.
Princeton subject headings:
Gold mines and mining--Colorado--Pikes Peak Region--History--19th century.
Pikes Peak Region (Colo.)--Gold discoveries.
Pikes Peak Region (Colo.)--History.