The Monongahela River Consolidated Coal and Coke Company was a railroad and coal transportation company, founded in 1899 in Pittsburgh, Pennsylvania. It was formed by merging more than 80 independent coal mines and river transportation businesses, both in Pennsylvania and Kentucky. Initially, it had an agreement with the Pittsburgh Coal Company to ship its coal only by water, and to not compete with it by using rail transport, but the agreement was ended in 1902. It merged with the Pittsburgh Coal Company on 24 December 1915.

The Monongahela River Consolidated Coal Company (MRCC) is a major coal mining and production company located in the Appalachian Mountains of West Virginia and Pennsylvania. The company was founded in the late 1800s and is one of the largest coal producers in the United States. MRCC operates over 100 coal mines throughout the region, producing both steam coal and metallurgical coal for power generation, steel-making, and other industrial uses.

MRCC is a leader in the coal industry, with a focus on safety, efficiency, and environmental responsibility. The company has invested in the most advanced mining and production technologies, including longwall mining and continuous miners, to ensure the highest levels of safety and production efficiency. In addition, MRCC has implemented a variety of environmental initiatives, including reclamation of mined land, water treatment and conservation, and air quality monitoring.

MRCC also produces a variety of coke and coke byproducts, including coke oven gas, tar, pitch, and ammonium sulfate. These products are used in a variety of industries, including steel-making, chemical manufacturing, and agricultural fertilizer production.

MRCC is a major employer in the region, providing jobs for thousands of workers. The company is committed to providing good wages and benefits to its employees, and has established a number of educational and training programs to ensure that its workers are well-educated and highly skilled.

MRCC is a major contributor to the economy of the region, providing jobs and economic stability to the area. The company is committed to providing a safe and productive work environment for its employees, and to helping the region to prosper.