Belmont Slough is a slough on the western shore of San Francisco Bay separating Redwood Shores and Foster City.
Foster City has established the slough as a nature preserve. In the early 1900s the slough was considered the best place to hunt ducks in San Mateo County, with the birds so plentiful, hunters could sneak up on them.
Coordinates: 37°33′15″N 122°14′40″W / 37.5541020°N 122.2444110°W