Enhance your exploration and drilling strategy in the Marcellus shale region with this detailed geographic guide to one of North America's most important shale gas areas.

Whether viewed from the wide standpoint of the entire region or zoomed down to single well locations, the map shows activity details, gas pipelines, isopachs, public lands, county- and play-area boundaries, and more.

At-a-glance tables provide stratigraphy for play and cross-section information.