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
Kettle River (St. Croix River) but not intensity as the river approaches the St. Croix. This last section of the river is some of the best canoeing available in the state with manageable rapids, good fishing, frequent wildlife sightings (including bears) and absence of other people. The Kettle River hosts class III-IV white water rapids that are frequently paddled by kayakers, canoeist, and rafters. The Kettle flows into the St. Croix River east-northeast of Pine City. Near its headwaters the river collects the West Branch Kettle River, which flows southeastwardly from its source near Wright. Other tributaries include the Dead Moose and Split Rock rivers,