Kbal Spean (Bridge Head) is an 11th-13th century Angkorian era site on the southwest slopes of the Kulen Hills, 25 km from the main Angkor group. It consists of a series of stone carvings in and around the Stung Kbal Spean river. The motifs for the stone carvings are roughly three: myriads of lingams, depicted as neatly arranged bumps that cover the surface of a rock; lingam - yoni designs; and various Hindu mythological motifs, including depictions of gods and animals.