Learn about San Francisco philanthropist and civic leader Martha Gerbode, who used her wealth and influence to back bold conservation efforts—including the preservation of the Marin Headlands and Alcatraz Island. “Don’t bring me any projects that other people would fund. I just want the tough, controversial ones."

With the frequent and heavy rains, about a dozen coast redwoods have come down in recent months (winter of 2016-17) at Muir Woods. Learn what happens when a giant falls, how trail crews move a 10-ton redwood, and how the death of one tree gives life to so many other species.