Spread out across the uplands of the Arctic National Wildlife Refuge, the Porcupine caribou herd grazes in the midnightsun. The coastal plain of ANWR has become a battleground in the war for drilling on the Slope.
Caribou warily cross a road in the Kuparek oil field, part of greater Prudhoe Bay. Those in favor point out that remnants of wildlife can still be seen in heavily developed oil fields. Environmentalists point out that the area is now an extremely polluted industrial zone.