Who is Atalanta from Goddesses in Everywoman: A New Psychology of Women and what is their importance?

Atalanta is a mortal heroine. She grew up in the wilderness, without normal parenting. Later in life, she returned to human civilization on a full time basis. At that point, she was well-known to be a heterosexual woman who was a fantastic hunter and also a superb runner. She was one of those people who was the best of everyone rather than only being the best of the women at these skills.
She appears early in the book. Her story is summarized as it shows the crossroads between the virgin goddesses and the relational ones.