Sea-level rise is threatening San Francisco’s shores. In February, the city began vegetating the sand dunes as part of its ...

The main secondary dunes include blowouts, parabolic dunes, and transgressive dunefields (Figures 2 and 3). Note, however, that parabolic and transgressive dunefield dune types may also occur ...

Inland, sand dunes rise almost 200 feet in a series of ridges, blowouts and valleys, while wetlands fill depressions between dune ridges. The park is home to over 1,100 flowering plant species and ...