Hulda Crooks, a Canadian-born American mountaineer, achieved extraordinary climbing feats in her nineties. Crooks climbed Mount Whitney 23 times, earning the nickname "Grandma Whitney" for her stamina. At 91, she became the oldest woman to summit Japan's Mount Fuji.

When Hulda Crooks stood on the summit of Mount Fuji on July 24, 1987, she was 91 years old and had already spent decades proving that age had little say in what the human body…

Hulda Crooks, a Canadian-born American mountaineer, achieved extraordinary climbing feats in her nineties. Crooks climbed Mount Whitney 23 times, earning the nickname "Grandma…