This story was originally published March 25 at 12:10 p.m. It has been updated.
Ice Camp Sargo consists of shelters, a command center and infrastructure to house and feed more than 70 people at a time.
The evacuation of Sargo was reminiscent of the evacuation of Ice Camp Nautilus in 2014, almost two years ago to the day. The camp is set up every two years to assist two attack submarines conducting operations under the ice floes in the Beaufort Sea. It also serves as a base camp for researchers testing ice thickness, among other things.
While the researchers were disappointed to leave a week early, the Navy still counts the mission a big success, said Cmdr. Tommy Crosby, spokesman for Submarine Force Atlantic.
"The vast majority of the experiments being conducted were completed, all but two" Crosby said, adding that while the camp was demobilized, the Navy was pressing on with its submarine-based experiments.
The attack submarines Hampton and Hartford are stalking around under the ice floes as scheduled, Crosby said.
"The exercise is still ongoing," Crosby said. "Hampton and Hartford are resuming their regularly scheduled operations."
David B. Larter was the naval warfare reporter for Defense News.