The first written reference to "Picu Urriellu" as "Naranjo de Bulnes" is credited to the German geologist and engineer, Wilhelm Schulz, who, in 1855, published the first topographic and geological map of Asturias.
Nora Naranjo-Morse | Manuel Bulnes | Claudio Naranjo | Fernando Bulnes | Fernando "Azulejo" Bulnes | Naranjo algorithm | Naranjo | Juan Francisco Bulnes (person) | Juan Francisco Bulnes | Fuerte Bulnes | Francisco Bulnes Sanfuentes |