Mercoal, a former coal mining town, is located in the Yellowhead County of western Alberta, Canada. It was one of several communities along the historic Coal Branch segment of the Grand Trunk Pacific Railway, which included Embarras, Robb, Coalspur, Coal Valley, Cadomin, Luscar, and Mountain Park. At its peak in the late 1940s and early 1950s the town had over 800 residents. Mercoal declined after the mines closed in 1959, and it is now essentially a ghost town with only a small number of summer residences remaining. It is situated on Highway 40, 70 km (43 mi) southwest of Edson, 8 km (5 mi) west of Coalspur.