Lone Mountain Children's Center was established as private, non-profit preschool in 1974. We offer a developmental, theme-based preschool program for children age two years and seven months through five years and six months. During more than a quarter century, Lone Mountain has served scores of San Francisco children and their families. Lone Mountain was one of the first preschools in San Francisco to establish a transitional Pre-Kindergarten program for four and five year old children.