Situated in a highly urbanized area amidst some of the most expensive real estate in the country, San Bruno Mountain has been under threat from development for many decades. San Bruno Mountain Watch has been a primary defender of the mountain since 1974, working with local partners to prevent the destruction of the mountain's rich natural environment.

In the 1980's, the Endangered Species Act was amended to allow landowners on San Bruno Mountain to destroy the habitat of endangered butterflies and build several housing complexes. In exchange, they were required to create a "Habitat Conservation Plan" or HCP, which called for them to fund and institute a biological mitigation plan for the butterflies. Mountain Watch, along with many other groups and people, fought against this plan in court but lost.

Today, HCPs cover tens of millions of acres of endangered species habitat across the country. While we often work with San Mateo County, the managers of the San Bruno Mountain HCP to help them in their biological restoration efforts, we do not condone any actions that compromise species that are already on the brink of extinction.

If you would like to sign a petition to encourage the defense of the Endangered Species Act in Congress, please consider signing this petition.