Officials in Yellowstone National Park say a Massachusetts man was gored by a bull bison Saturday near the Norris Campground. Spokesman Dan Hottle says the bison threw the man 10 feet in the air and then pinned him to the ground. Hottle says the man suffered a broken collarbone, shoulder blade, several ribs and a groin injury in the encounter. He was airlifted to an Idaho Falls, Idaho hospital and is expected to recover. His name was not released.