 The most significant site, aside from Óc Eo itself, is at Tháp Muời north of the Tien Giang River, where among other remains a stele with a 6th-century Sanskrit text has been discovered.Aerial photography in 1958 revealed that during the Funan period a distributary of the Mekong entered the Gulf of Thailand in the vicinity of Ta Keo, which was then on the shore but since then become separated by some distance from the sea as a result of siltation.At that time, Ta Keo was connected by a canal with Oc Eo, allowing it access to the Gulf.