(Andy Goldsworthy’s Wood Line, Photo by Ronosaurus Rex)
Walking through the forested Presidio, it’s easy to imagine that San Francisco was once covered with trees. Not so! Its sandy, shifting soil supported mostly low, ground-hugging plants, such as dune strawberry and lupine. One of the best places to see what San Francisco looked like before its transformation is the tidal marshes of Crissy Field, the first of my favorite places in my walk around the San Francisco Bay.