South San Francisco, CA October 30, 2015 Submitted by Andy Howse, Open SF Watershed Unbeknownst to most travelers of highway 92 in San Mateo County, as they pass under the Ralston-Polhemus underpass they are actually voyaging through an area with…
South San Francisco, CA October 30, 2015 Submitted by Andy Howse, Open SF Watershed Unbeknownst to most travelers of highway 92 in San Mateo County, as they pass under the Ralston-Polhemus underpass they are actually voyaging through an area with…