For the real places of this name, see Cibola, Arizona and Cibola County, New Mexico.
Cibola is a mythical land whose seven cities' golden treasures drew the Conquistadors northward through the Jornada del Muerto Desert, the Llano Estacado (Staked Plains), in which they encountered a 'Sea of Grass', and finally, the French, who resisted further northward advance.
See also: El Dorado (myth), Fountain of Youth.