( CNN ) -- A national park ranger fell to his death on Mount Rainier Thursday afternoon while assisting in the rescue of four injured climbers . Climbing Ranger Nick Hall fell about 3,700 feet down the northeast side of the mountain as he helped prepare the other climbers for extrication by helicopter , said Kevin Bacher , a Mount Rainier National Park spokesman . The climbers from Waco , Texas , had to be rescued after they slipped down the Emmons Glacier after a successful summit of the mountain . All of them were tied together . Their plunge down the mountainside left two of them dangling in a crevasse . They called for help with a cell phone . None of their injuries were life-threatening . Three of the climbers were eventually lifted off the mountain by Chinook helicopters from Joint Base Lewis-McChord despite stormy conditions . The fourth climber is spending the night on the mountain with two rangers , Bacher said . From the archives : Mount Ranier ranger shot dead in January . CNN 's Samuel Gardner III contributed to this report .
The ranger falls more than 3,000 feet on Mount Rainier . Three injured climbers are removed from the mountain by helicopter . A fourth climber is spending the night . None of their injuries were life-threatening .