WMSC meaning in Regional ?

The Apache Railway (reporting mark APA) is an Arizona short-line railroad that operates from a connection with the BNSF Railway at Holbrook to the Snowflake Mill near Snowflake, Arizona, 38 miles (61 km). The APA was acquired by Catalyst Paper from Abitibi Consolidated in 2008. The Snowflake paper mill shut down permanently on September 30, 2012. In late 2015, the railway was purchased out of bankruptcy by a group including Aztec Land & Cattle Company and Midwest Poultry Producers, L.P., thereby avoiding a shutdown and scrappage of the line. The railway continues to operate, and its revenues are driven primarily by car repair and storage. The railway's freight revenues have not yet recovered from the shutdown of the Snowflake paper mill then owned by Catalyst, although efforts to enhance them continue.