Two hunters were surrounded by six to eight wolves when trying to pack out an elk kill in the Flathead Valley region of Montana. According to initial reports the hunters shot into the air to spook off the wolves and eventually abandoned the elk kill. When trying to vacate the area, the hunters were followed by the wolves and one wolf was killed.
The Missoulian  has an article up on the incident. From the article:
After making lunch and drawing the horses nearer to the meat to begin loading the elk quarters in a pannier, Appleby said his horse, named "Shotgun," spooked. When he turned around, he saw between six and eight wolves "running at us 30 to 40 yards away," according to a written statement he filed with FWP.
He and Pitman fired rounds from a rifle and a sidearm into the air to keep the wolves at bay, but the pack continued to howl, scaring the horses and forcing the men to abandon the meat.
As they trekked back out to their vehicle along Deep Creek Road, having abandoned the quarters, backstrap and tenderloin, the wolves followed the men.
"We got about 50 to 75 yards down the road when the wolves were howling right next to us on the side of the road," Appleby wrote in his statement. "I said, ‘The bastards are following us, maybe trying to kill us or the horses.' I told Raymond to shoot into the trees at them as we were trying to get away down the road. And that's what he did."