The Pedregal rock art site is located in the most northwest corner of Costa Rica only 20 km away from the Nicaraguan border. Its ground monuments belong to the Cordillera de Guanacaste mountain range, situated in the correspondent province of Guanacaste. The whole Pedregal archaeological zone forms part of the Guanacaste Conservation Area (GCA) and has been declared an UNESCO World Natural Heritage Site in 1999. The first scientific report on its rock art monuments dates from 1989 (Chavez Jiménez) and is listed in the archaeological database of the Costa Rican National Museum under the sites key G-540-Pd.
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