Reservoirs of Nam Ngum and Ubol Ratana Dams in Laos and Thailand17.9N 102.6E
This wide-swath ASAR image shows hills and lakes in Thailand (below) and Laos (above). The large lake just above the image center is the reservoir created by the Nam Ngum Dam on the Nam Ngum river, a major tributary of the Mekong in Laos.
Visible to the south is the reservoir created by the Ubol Ratana Dam (formerly known as the “Phong Neeb Dam”), a multi-purpose dam located in Tambon Kok-Soong, Ubol Ratana District, approximately 50 km north of Khon Kaen, Khon Kaen Province, Thailand. It was the first hydroelectric power project developed in the Thailand’s northeastern area of Isan. The dam impounds the Nam Phong, a tributary of the Mekong River.