In 1959 the Southern Pacific Railroad completed a solid-fill causeway across the Great Salt Lake (Utah). Here one can see a train moving across Bear River Bay and towards Promontory Point.


The causeway across the main lake divides it into the hypersaline Gunnison Bay to the north (salinties near 30%) and the southern Gilbert Bay, where salinities have varied from 5-18% (1984-2008) depending on freshwater inflows.


Photo: October 2004