The Pinedale Anticline Natural Gas Field in the Upper Green River Valley is being developed in one of the valley's most important winter range and spring birthing areas. This area is also in the center of one of the nation's longest and most ancient big game migration routes, a crucial link for animals in the Greater Yellowstone Ecosystem traveling between Grand Teton and Yellowstone National Parks and Wyoming's Red Desert.

The Bureau of Land Management has approved the development of 700 well pads in the Pinedale Anticline Project, most of which will soon be constructed.

Time-lapse satellite imagery reveals the fast pace at which oil and gas overcomes a landscape once industry is given unrestricted access. If current trends continue, much more of the Upper Green River Valley could be transformed into similar high density gas fields with traffic, dust, noise, and diminished air and water quality. Learn also about the nearby Jonah Natural Gas Field.