The pre-Angkorian temple complex of Sambor Prei Kuk is located about 30 kilometers to the north of the town of KAMPONG THOM, CAMBODIA. It was also known as Isanapura, and was the capital of the CHENLA KINGDOM. Located on the Eastern bank of TONLE SAP close to the Sen River, the central part of Sambor Prei Kuk is divided into three main groups. Each group is located in a square lay out surrounded by a brick wall. The structures of the overall archaeological area were constructed at variable times: the southern and north groups (7th century) by Isanavarman I, and the central group (later date). The buildings of Sambor Prei Kuk are characteristic of the Pre-Angkorean period with a simple external plan. The principal material is brick, but sandstone is also used for certain structures. Architectural features include numerous prasats, octagonal towers, shiva lingams and yonis, ponds and reservoirs, and lion sculptures. Sambor Prei Kuk is located amidst mature sub-tropical forests with limited undergrowth. The area has been mined and could still contain unexploded ordnance