Electro Motive A vintage quartet of EMD power run towards Searles to pick up a coal train off the Union Pacific interchange. The power is moving along the edge of an ancient lakebed that is saturated with Trona. The mineral is used in various manufacturing process and is one of the main ingredients in making glass, detergent, Baking soda, and detergent. Rumor is the Trona may be shopping for new power, so these may be the last days for these hold-outs of the 70s, dressed for the 90s...