The Sierra de Moncalvillo (Moncalvillo Mountains) belongs to the Sistema Ibérico and is located in La Rioja (Spain). Its summits are located above 1200 m, being Serradero (1495 m) its highest peak. Another important peaks are: Neveras (1424 m) and Calva (1261 m). Barranco del Colorado is located on its north side. Most of the valle del Ebro in La Rioja can be seen from them.