Dead Sea 342 parts per thousand (in 2002), and a temperature that swung between and . Underneath a zone of transition, the lowest level of the Dead Sea had waters of a consistent temperature and complete saturation of sodium chloride (NaCl). Since the water near the bottom is saturated, the salt precipitates out of solution onto the sea floor. Beginning in the 1960s, water inflow to the Dead Sea from the Jordan River was reduced as a result of large-scale irrigation and generally low rainfall. By 1975, the upper water layer was saltier than the lower layer. Nevertheless, the upper layer remained
Middle Branch Dead Diamond River to the East Branch of the Dead Diamond, finally joining it in the Atkinson and Gilmanton Grant, less than one mile upstream from the confluence of the East Branch and the West Branch of the Dead Diamond. Middle Branch Dead Diamond River The Middle Branch of the Dead Diamond River is a long river in northern New Hampshire in the United States. It is a tributary of the East Branch of the Dead Diamond River, located in the Androscoggin River watershed of Maine and New Hampshire. The Middle Branch flows for most of its length through Pittsburg, the northernmost town