Gaurisankar Region. The Merseyside Himalayan Expedition under the leadership of Alfred Gregory spent two and a half months climbing and exploring in the little-known region between Guarisankar and Cho Oyu. They first climbed two peaks south of the Rowaling and in April went up the Tolam Ban Glacier to survey and there climbed eight more mountains. Later they climbed in the Menlung Valley. In all they ascended 19 peaks between 17,000 and 21,000 feet and mapped the region.