Study limit boundaries for the Ferris 23, 25, 31, 50 and 65 coal zones, Hanna Basin, Wyoming (fer*stdyg)

Boundary Carbon County Coal Coal zone Ferris 23 coal zone Ferris 23 study limit Ferris 25 coal zone Ferris 25 study limit Ferris 31 coal zone Ferris 31 study limit Ferris 50 coal zone Ferris 50 study limit Ferris 65 coal zone Ferris 65 study limit Ferris coalfield Hanna Basin National Coal Resource Assessment Northern Rocky Mountain and Great Plains Fort Union Coal Resources Assessment Northern Rocky Mountains and Great Plains Region Study area USGS:60c91493d34e86b9389de970 Wyoming coal economy environment geoscientificInformation hannabasincoal nca2000 nrockiescoal