3-times daily a train runs the 64km trip each way between Thevenard and Kevin to load Gypsum. The Gypsum is mined by Gypsum Resources Australia, a joint-venture between CSR and Boral, before being shipped to Glebe Island in Sydney for further storage before distribution. The Lake Macdonnell Mine is the largest deposit of Gypsum south of the equator.
Genesee & Wyoming operate the train between the Mine and Port upto 7 days per week using this usual lash up of 2 1600 (former NJ) locomotives and 2 830 (Alco DL531s), being 1606, 1603, 859 and 851, on 3DD4 seen here arriving into Port Thevenard to commence the hour long unloading procedure.
Although Physically connected, this division of the Eyre Peninsula Railway does not operate and freight through into the Port Lincoln end. Light Engines occasionally make the very slow trip between the two systems, this will cease on the operates in the Eastern Portion finish on May 31.