alaskan pipeline(n = noun.artifact) trans-alaska pipeline - an oil pipeline that runs 800 miles from wells at Prudhoe Bay to the port of Valdez;
is a kind of line, pipeline
is a part of ak, alaska, last frontier

alaskan, alaskan brown bear, alaskan king crab, alaskan malamute, alaskan native, native alaskan, oil pipeline, pipeline, pipeline company, riser pipeline, trans-alaska pipeline