Founded in 1971 and based in San Francisco, NatureBridge is the largest residential environmental education partner of the National Park Service. Its mission is to inspire personal connections to the natural world and responsible actions to sustain it. NatureBridge currently operates four campuses: Yosemite Institute in Yosemite National Park, Olympic Park Institute in Olympic National Park in Washington state, Headlands Institute in Golden Gate National Parks and Santa Monica Mountains Institute in Santa Monica Mountains National Recreation Area. Each year, NatureBridge serves more than 40,000 participants through field science, youth leadership and teacher training programs. NatureBridge is a 501(c)(3) nonprofit organization.