KATMANDU, Nepal — A veteran Sherpa guide who has scaled Mount Everest 19 times and another Nepalese guide are missing after an avalanche hit them while they were climbing a smaller Himalayan peak, his agent said Sunday.Chhewang Nima, 43, was hired by a British expedition to scale the 23,380-foot (7,130-meter) Mount Baruntse and was fixing ropes near the summit when an avalanche hit him and the other guide on Saturday, said Jeevan Ghimire of the Sherpa Shangrila Trek and Expedition agency.Read More... More on Asia