By the end of the 1980s, the climber from Detroit was famous around the world. In 1979, when she was 18 years old, Hill was the first woman in the world to climb a difficulty rating of 7c (IX) on the »Ophir Broke« route in Ophir, Colorado. Since then, she has been considered one of the best sport climbers in the world. Lynn grew up in California and was soon noticed because of her talent for sport. When she was 14 years old she began to climb and was quickly at home on the walls around the legendary »Camp Four« in the Yosemite National Park.
Between 1986 and 1992, she won more than 30 international competition titles; she won five times at the Arco Rock Master alone. Moreover, she was also successful outside the competition arena. In 1984, she successfully made the first on-sight free ascent of the »Yellow Crack« (IX) in the Shawangunks, New York. She reached a further milestone in 1991 with the first red-point performance of »Masse Critique« in Cimai, France as she was the first woman to climb the difficulty level 8b (X).