Hulda Hoehn Crooks was an American mountaineer, dietitian and vegetarianism activist. Affectionately known as "Grandma Whitney" she successfully scaled 14,505-foot (4,421 m) Mount Whitney 23 times between the ages of 65 and 91. She had climbed 97 other peaks during this period. In 1990, an Act of Congress renamed Day Needle, one of the peaks in the Whitney area, to Crooks Peak in her honor.