Ground failures induced by an accumulation of stress near the longwall face have necessitated development of a reliable monitoring system capable of rapidly and effectively receiving, processing, and transmitting rock behavior information. This information allows for quick adjustments in mine planning to prevent ground failures. The inclusion of a remotely located, high-speed computer in the monitoring system increases the rate at which data can be collected, processed, and analyzed. The objective of the initial phase of the program was to design an effective automated data-monitoring system (adms). It consists of a primary, commercially available computer linked to an underground array of pressure sensors installed in and around a working longwall panel. An experimental system is presently operating in a western U.S. coal mine. This U.S. Bureau of Mines paper discusses the installation, implementation, and usage of the adms and its adaptation to future ground control programs.