Pliego is a municipality in the autonomous region of Murcia in southeastern Spain. It is situated in the Comarca del Río Mula. It ha…Pliego is a municipality in the autonomous region of Murcia in southeastern Spain. It is situated in the Comarca del Río Mula. It has a population of 3,868. It is a small town near the beautiful Mountain Nature Park of the nearby Sierra Espuna Mountains with surrounding countryside of olive, almonds and apricot groves.