A Navy Search and Rescue team from Whidbey Island Naval Air Station rescued a 42-year-old man and his 11-year-old son who were stuck in a steep rocky area of Elk Rock, near Mount St. Helens, earlier this week.

Both father and son were suffering from hypothermia and in need of medical assistance, according to a statement released by the Navy.

NAS Whidbey’s SAR was dispatched at around 4:30 a.m. Tuesday because it was the only available high-altitude nighttime resource in the region.

According to the Helicopter Aircraft Commander Lt. Cmdr. David Waner, the SAR crew landed the MH-60S helicopter in a river bed.

“We used great crew resource management to keep the mission on track,” Waner said. “Thanks to the SAR ground team for preparing them for transportation and the Cowlitz Sheriff and Dispatch.”

The two victims were flown to Providence Centralia Hospital.