Ama Dablam, Southwest Ridge, Pre-Monsoon. The southwest ridge of Ama Dablam continues to be the objective of numerous expeditions. In the premonsoon season only one group made the climb successfully to the summit. On April 4, Michael Murphy of the Irish expedition led by Cornelius Moriarty reached the top. The following made attempts: Italians led by Angelo Giovanetti to 6400 meters on March 25; six Americans, three Mexicans and a Canadian led by Paul Thorndike to 6040 meters on March 29; Americans led by Evan Smith to 6400 meters on April 12; and Americans led by Thomas Bol to 6475 meters on April 13.