Sempervirens Fund has also worked to establish conservation easements and trail linkages between parks and coastal marine preserves.
Hill refused, and though he had not thought of himself as a conservationist, returned to San Jose and started a campaign to save the coast redwoods of the Santa Cruz Mountains and make them accessible to the public.
At this meeting, a surveying committee was appointed, headed by Hill and Carrie Stevens Walter from the San Jose Woman's Club.
[3] For over two years, the Sempervirens Club members campaigned for the creation of a state redwood park in the Santa Cruz Mountains.
Delmas, and Harry Wells, editor of the San Jose Mercury News, convinced the California Legislature to pass a bill in 1901 allowing for the creation of the park.
At the same time, the area was being threatened with severe ecological damage from subdivision and development on over 750 acres of private land in key locations within the boundaries of the Waddell Creek watershed.
Recognizing that Big Basin would remain threatened unless the greater regional ecology was preserved, a group of local conservationists, including Tony Look, Dorothy Varian, Howard King, George Collins, and Doris Leonard, joined together to work toward protecting the entire Waddell Creek watershed and establishing a new state park at Castle Rock, 14 miles northeast of Big Basin.