Mount Sutro Open Space Reserve: An Oasis in SF
By Whitney Grover
There’s something magical about stepping off a concrete sidewalk and onto a dirt path. The claustrophobic buildings are replaced by comforting trees. Car alarms and ambulance sirens are replaced by singing robins and the soft chips of sparrows. The Mount Sutro Open Space Reserve is one of these places, a green oasis in the heart of the cool grey city. But in truth, there’s very little that is “natural” about what we see today on the Mountain. Jutting up to a 909 foot elevation, the Mountain is comprised mainly of chert, which you can see exposed in several areas along the trails. Before European settlers arrived, developing and foresting the area, the vegetation was likely native grasses and coastal scrub habitat. The enormous grassy hill was surely quite a sight, visible from far and wide.
Mount Sutro by Whitney Grover
But today Mount Sutro is a forest, densely packed eucalyptus trees form a thick canopy. Invasive ivy and blackberry carpet the understory. Beginning in 1886, Adolf Sutro began foresting the area, he intended to use the fast growing Australian eucalyptus for lumber, but the particular variety turned out to be poor for logging. Over the decades, some of the trees were harvested, and the surrounding areas were cleared and developed. But the steep slopes of Mount Sutro were left with this foreign flora. Eventually, the land was acquired by the University of California, San Francisco (UCSF), whose Parnassus campus sits at the North foot of the Mountain.
Pacific Wren by Mick Thompson
The birds we find on the Mountain today are ones you would expect in a forest habitat: Pacific Wren, Thrushes, Song Sparrow, Woodpeckers, Pygmy Nuthatches and Steller’s Jays. Although the majority of the plants are invasive and non-native, there are at least 74 native plant species found throughout the Mountain including California bay laurel, several native fern species, red elderberry, poison oak, and others. In the early 2000s, the summit was restored to a native plant garden, funded by the Rotary club and executed by The Sutro Stewards. The Sutro Stewards work tirelessly to remove the invasive understory plants and replace them with natives. They run a native plant nursery, maintain the trails, and organize volunteers to these efforts.
And now a new chapter is unfolding.
Pygmy Nuthatch by Doug Greenberg
After a decade long process shaped by public comment, EIRs, committees of experts, and no shortage of drama, UCSF has published a Vegetative Management Plan which outlines a 20-year restoration plan for the Mountain.…

Sharp-shinned Hawk by Sandy Paiement
White-throated Swift by Jerry Ting
Harlequin Duck by Isaac Grant
Stellar’s Jay beginning a nest
Bringing more material, while its mate arranges twigs in the nest
Stellar’s Jay
Allen’s or Rufous Hummingbird
House Finch by Rocky T.
Bewick’s Wren by Aurora Santiago
Female Anna’s Hummingbird by Aurora Santiago