The Trans-Alaska Pipeline is an 800-mile long, 48-inch diameter pipeline that conveys oil from here in Prudhoe Bay, on Alaska’s North Slope, south to Valdez in Prince William Sound which is the farthest Northern port that doesn’t ice over in the winter. | Leigh Coates

4.1K views · 108 reactions | "The trans-Alaska Pipeline is surely the most significant event in modern Alaska history," said Dave Haugen, Pipeline Construction Engineer. Alyeska Pipeline Service Company: A 30 Year Journey. #TBT #40more | Alyeska Pipeline Service Company | Facebook

156K views · 963 reactions | "The Alaska Pipeline -- A Progress Report, Sept. 1975, Episode 1: "The trans-Alaska Pipeline by mid-September 1975 is 29% complete." #TBT | Alyeska Pipeline Service Company | Facebook

13K views · 216 reactions | Forty years ago today, Alaska’s steel artery – the Trans Alaska Pipeline System – pumped its first barrel of oil, and 17 billion more have followed since. It is impossible to overstate the importance of TAPS to Alaska: supporting our schools and public services, building a strong economy, and bringing countless opportunities to Alaskans. Looking forward to many more years of a full and functional pipeline. Happy Birthday, TAPS! | Senator Dan Sullivan | Facebook