 The redwoods contained in today's regional park are third-growth trees, many of which are over 100 years old.Only one old-growth redwood remains in the area, a tall tree that seems to grow miraculously out of a rock on a cliff face near Merritt College, which may have survived because it was out of reach for loggers.Once home to a grove named for her, the entire park was named for Dr. Aurelia Reinhardt in 2019.