Includes records created and used by the West Virginia University Extension Service's Mining Extension program. This collection reflects a broad range of the program's activities, like material from classes offered on topics such as mine gas metering, fire and emergency prevention, mine engineering, industrial machinery, welding, and mine protection. It also features administrative records, like instructor travel expense logs, budget information and supply requests, departmental correspondence, correspondence with mining industry governing agencies, documentation of certificates conferred by the program, and more. Additionally, it includes material related to the practical mining work that the Mining Extension oversaw and had students participate in at locations like Rush Run and with entities like the Scotia Coal and Coke Company. These records include things like coal return receipts, weekly coal reports, and documentation of injuries, deaths, and related compensation. Lastly, there is a small quantity of material relating to the Fire Service Extension's programming, which looks to have shared some overlapping faculty with the Mining Extension at the time these records were created. These items mainly include correspondence, both within and outside of the department, and material from classes taught by the program. The majority of the collection, Mining Extension records, comprises Series 1. The smaller portion of the collection, the Fire Service Extension records, comprises Series 2.