Discovery of the petroglyphs of Peña Fadiel Historical milestone · Lucillo, La Cabrera, León Image of Lucillo, not of the place itself. In 2008 the amateur researcher Juan Carlos Campos Gómez came upon the Peña Fadiel carvings by chance and identified them as prehistoric; subsequent studies described motifs with no known parallel in the northwest. 2008 Photo: ACIICA1981 (CC BY-SA 4.0) What to see and do in Lucillo