On March 24, 1989 the Exxon Valdez tanker ran aground and spilled nearly 11 million gallons of oil in Alaska’s Prince William Sound.
It was the worst oil spill in US history until 2010, when Deepwater Horizon disaster pumped nearly 20 times that into the Gulf of Mexico.
Thirty years later, the pictures of the aftermath and cleanup efforts in Alaska remain iconic images for environmental activists, starkly depicting the blunt force of industry running headfirst into a delicately balanced natural setting.