Open book with a drawing of a group of people in a field

Group of people in red shirts standing in front of a building with…

Small green plant growing out of the ground

Small burrow in the middle of a grassy field

Close up of a metal object with text inscribed on it

Tree with green leaves and black berries growing on it

Close up of a plant with green leaves growing out of the ground

Close up of a green leaf on a plant in the woods

Old topographic map of the city of San Francisco