PA SAK jolasid dam is located at ban Nong Bua district, Lopburi province estates development is the longest Earth Dam in Thai. The PA SAK River is the largest of 13 in 25 of the country's watershed Thai. 14,520 square kilometers ... There is a long tapered narrow basin characteristics. The upstream sources in Loei province. 513-kilometer long river flows through the province of phetchabun, LOP buri, saraburi, and meets the river.