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Drilling the West
JULY 2005
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Photo captions by Joel K. Bourne, Jr.


Sights and Sounds
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Drilling the West Gallery Photo

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Losing Ground
Photograph by Joel Sartore

At speeds of about 60 miles an hour (97 kilometers an hour), pronghorn—North America's fastest land mammal—race across a section of the Jonah Field near Pinedale, Wyoming, part of the traditional migration route for some 44,000 pronghorn. The pace of energy development in the 30,000-acre (12,140 hectare) field has been just as fast. Since the mid-1990s more than 500 gas wells have been drilled in Jonah Field, estimated to hold ten trillion cubic feet of natural gas. A current proposal would pack in another 3,100 at densities as high as one well every ten acres (four hectares).

Photo Fast Facts
Camera: Nikon F5
Film Type: Fujichrome Velvia
Lens: 17-35mm
Speed and F-Stop: 1/8 @ f/2.8

Weather Conditions: Partly cloudy
Time of Day: Dusk
Lighting Techniques: Natural light

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