Royalty-free trans-alaska pipeline photos

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pipeline, alaska, engineering, oil, alaska pipeline, trans-alaska pipeline, crude oil pipeline, prudhoe bay to valdez, permafrost, energy

Public Domain
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Alaska, Trans-Alaska Pipeline, Brooks Range, oil production, Arctic ecosystems, scenic wilderness, USGS research, geology, minerals, landscape, nonrenewable resources

Public Domain
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Alaska, Trans-Alaska Pipeline, northern Brooks Range, landscape, oil, pipeline, energy, USGS, assessments, North Slope, rocks

Public Domain