Coal mined from the Upper Kittanning coal seam.

Mine 78 is an underground mine which develops upper Kittanning coal seam utilizing room-and-pillar mining method. Rosebud Mining Company (Rosebud) applied for a new surface coal and auger mining permit to be known as the Mine 78 No. 3 Mine. The proposed location is in Richland Township, Cambria County and Paint Township, Somerset County. On March 25, 2022, DEP issued the Surface Mining Permit (SMP). See the Permitting/Approvals section for the final permit document. The Mine 78 Surface No. 3 Mine will have multiple seams with activities wihtin 500 feet of the active Mine 78 (Upper Kittanning Seam) underground mine and within 500 feet of the abandoned Yost (Upper Freeport Seam) underground mine. A breakdown of activities by seam is as follows; Middle Kittanning Coal Seam; auger mining will be conducted within 500 feet of an abandoned portion of the active Mine 78 site and within 500 feet of and beneath portions of the abandoned Yost Mine. The overburden interval between that Middle Kittanning Seam and the Upper Kittaning ranges from 40-70 feet. Upper Kittanning Coal Seam; strip mining will be conducted approximately 200 feet from and abandoned portion of the active Mine 78 site. If is anticipated that strip mining will encountered workings of the abandoned Yost Mine. Lower Freeport Coal Seam; auger mining will be conducted within 500 feet of an abandoned portion of the active Mine 78 site. The overburden interval between the Lower Freeport Seam and the Upper Kittanning Seam ranges from 40-70 feet.

Mine 78 Preparation Plant as at 2020:
- Raw feed - 500 ton-per-hour
- Product Ash % - 6.5%-8.75%
- 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 2008
- Last Upgrade - 2017