Water politics in the Jordan River basin the salinity of the tributary Yarmouk River is also satisfactory, at 100 ppm, but the lower Jordan river becomes progressively more saline as it flows south. It reaches twenty-five percent salinity (250,000 ppm) where it flows in the Dead Sea, which is about seven times saltier than the ocean. As a resource for freshwater the Jordan River drainage system is vital for most of the population of Palestine, Israel and Jordan, and to a lesser extent in Lebanon and Syria who are able to use water from other national sources. (Although Syrian riparian rights to the Euphrates has been severely
Poxte River River, which is a tributary of the Machaquila River. The Machaquila River feeds into the Pasión River, which flows into the Usumacinta River and into the Gulf of Mexico. The upper reaches of the Poxte River shares its drainage with the Mopan River, which flows eastwards into the Caribbean Sea. The Poxte River Basin itself measures long and is wide. The river valley drainage is broken and confused, and the land has been largely cleared of forest in order to graze cattle. The Poxte valley includes modern settlements of Las Nuevas Delicias, La Lucha, Santo Domingo and Boca del Monte.