Naomi Uemura

|Uemura Naomi|February 12, 1941 – disappeared February 13, 1984}} was a Japanese adventurer who was known particularly for his solo exploits. For example, he was the first person to reach the North Pole solo, the first person to raft the Amazon River solo, and the first person to climb Denali solo.

Before his 30th birthday, Uemura had solo-climbed Mount Kilimanjaro, Aconcagua, Mont Blanc, and the Matterhorn, had walked the length of Japan, and summited during the first (1970) Japanese expedition to climb Mount Everest and subsequent disastrous 1971 International Everest Expedition.

Naomi Uemura was a licensed radio amateur operator, signed as JG1QFW. He used amateur radio communication during his expeditions. Provided by Wikipedia