Title: Deep core complete - WAIS Divide project finishes five-year effort to retrieve 3,331 meters of ice
Organization: United States Antarctic Program
Periodical: The Antarctic Sun

More than 20 years in the planning.

Storms often prevented planes from arriving for days or more at a time.

In the final weeks, mechanical breakdowns of the drill and the usual weather delays appeared to derail any hopes of reaching the final depth goal for the season of 3,330 meters.

But it happened. It is done. The U.S. Antarctic Program (USAP) has drilled and recovered its longest ice core to date from the polar regions, officially hitting 3,331 meters.

Year: 2011