Economic analysis of carbon dioxide sequestration in powder river basin ...
WEBJan 7, 2009 · The WyodakAnderson subbituminous coal zone is the largest coal zone in the Powder River Basin. The approximate extent of the unminable portion of the WyodakAnderson coal zone in the PRB is the area encompassed by the white line drawn in Fig. maximum depth of the WyodakAnderson coal zone is about 2500 ft (762 m) near .