The Tug River Coal Field includes the counties of McDowell (part) and Wyoming (part).
The Tug River Coal Fields lies west of the area included in the Pocahontas field and consisted primarily of coal mining operations in the No. 3 Pocahontas seam. This region is marked by the appearance of the New River coal and the increasing thickness of the No. 4 Pocahontas as well as other upper seams of the Pocahontas group -- chiefly the No. 5 and No. 6.
There are twenty-five seams included in this region, but the six mined most extensively have been the Douglas (Red Ash), Sewell (Davy), Welch, Beckley (War Creek No. 4 Pocahontas), and No. 3 Pocahontas. There have also been mines in the Nos. 5 and 6 Pocahontas, Iaeger, Lower Douglas (Hughes Ferry), and the Gilbert seams.