Thevenard, empty gypsum train 6DD3 lead by narrow gauge loco 1604 with a triple consist of Clyde Engineering built EMD JL22C model 1600 / NJ class combination of 1604 serial 71-731 and originally NJ 4, NJ 3 serial 71-730 and 1601 serial 71-728 the original class leader NJ 1, all three units started on the Central Australia Railway in 1971 and were transferred to the Eyre Peninsula in 1981. 1604 and 1601 both renumbered in 2004 GeoData. 13th January 2006.