 There are 14 coal seams in the Solomon Creek watershed. The deepest seam is the Bottom Red Ash. Other seams included the Middle Red Ash, the Top Red Ash, the Checker Bed, the Pittston Bed, the Ross Bed, the Skidmore Bed, the Kidney Bed, the Snake Island Bed, the Hillman Bed, and the Abbott Bed. There are also three numbered beds called the # 2, # 3, and # 4 beds. Historically, parts of the seams were within 50 feet (15 m) of the surface, but they were completely mined. Areas along the banks of the creek are covered in coal ash, coal silt, sand, and gravel. There are gravel bars and point bars in the lower reaches of the creek. The lower reaches of Solomon Creek have a 0.2 % grade.
