San Bruno Mountain is one of the largest public open spaces in urban America. Our programs conserve and nurture the mountain's unique ecosystems - home to 13 rare and endangered plants and four federally listed butterflies.

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Our goal is to conserve all land on and near San Bruno Mountain as public open space. We work with local landowners, donors, and government officials to ensure the protection of areas that are eligible for development.

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We protect and restore the habitats of San Bruno Mountain's rare and endangered species with the help of local communities.

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Through guided hikes, educational programs for schools, native plant sales, film screenings, and slide shows, we educate the community about the remarkable life of the mountain and the importance of protecting endangered species and their habitats. 

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