Coal mined from the Upper Kittanning coal and Upper Freeport seam.

Rosebud Mining, controlled by J. Clifford Forrest, is the third largest operator of deep mines in Pennsylvania and the largest operator of just room-and-pillar deep mines (excluding longwall operations).

Rosebud Mining commissioned the Crooked Creek prep plant in Pennsylvania earlier this year. The heavy-media plant has a raw feed capacity of 400 tons per hour. The plant uses a heavy-media cyclone, forth flotation and spirals to produce a low-sulfur product with 7.5%-8.5% ash. The PLC-controlled plant employs centrifugal dryers and an ash analyzer. The Crooked Creek prep plant main sources include Crushers, Screens, Conveyors, Radial Stackers, Front-end Loaders, Roadways, Coal Stockpiles, Rail load-out facilities, and Emergency Diesel Engine. Emission controls include water sprays, enclosures, and work practice standards. Mine Crooked Creek Preparation Plant as at 2020: - Raw feed - 400 ton-per-hour - Product Ash % - 7.50%-8.50% - Quality - < 1.2 (low sulfur) - Type of plant - Heavy Media - Primary Separ. - HM Cyclones - Fine Coal - Froth and Spiral - Centrifugal Dryer - Controls - Programmable logic controller - Constraction year 2020