Volunteer: Presidio Forest Stewards (Friday) December 18 @ 9:00 am - 12:00 pm Presidio Forest Stewards
Presidio Habitat Stewards (Every Saturday) December 19 @ 9:00 am - 12:00 pm Presidio Habitat Stewards (Every Saturday)
Litter Pickup on the Presidio Tunnel Tops December 19 @ 10:00 am - 12:00 pm Litter Pickup on the Presidio Tunnel Tops