(Superior, Wisconsin) -- A Superior, Wisconsin man who spent two days and two nights outdoors over the bitterly cold weekend was found alive and taken to the hospital to be treated for frostbite and hypothermia.  A snowplow driver saw 52-year-old Craig Friebe walking on the ice of the Nemadji River this (Mon) morning, two days after his sled apparently ran out of gas and he had to walk out.  Superior fire officials say Friebe had a fire the first night, but not last (Sun) night -- when the temperature reached 20 below and wind chill 40 below.