Miriam O'Brien Underhill

Miriam O'Brien Underhill
A young white woman, standing outside, smiling broadly, wearing a dark coat and glasses; she is holding a book and a slip of paper or cloth in her hands
Miriam O'Brien, from the 1920 yearbook of Bryn Mawr College
Born(1898-07-22)July 22, 1898,
Forest Glen, Maryland
DiedJanuary 7, 1976(1976-01-07) (aged 77)
Lancaster, New Hampshire
Known forMountaineering

Miriam O'Brien Underhill (July 22, 1898 – January 7, 1976) was an American mountaineer, environmentalist and feminist, best known for the concept of "manless climbing" – organizing all-women's ascents of challenging climbs, mostly in the Alps.