Exploring Nature in the San Francisco Bay Area

The Saved and the Dammed

For better and worse, the upper reach of the Pilarcitos watershed on the Peninsula was dammed to supply water to San Francisco in the 1860s. The surrounding land has been protected and kept off-limits to the public ever since, allowing rare species to thrive here. That includes the marbled murrelet, which nests only in old-growth conifers, such as Douglas fir. But the dam and other impacts also leave less water in the creek for oceangoing steelhead. Now, a diverse group of stakeholders has come together to chart a brighter future for the fish and the creek.

Muir Woods Anniversary

Though named for legendary conservationist John Muir, Muir Woods National Monument is really the legacy of William Kent, a wealthy landowner and politician. His gift to the nation 100 years ago of this redwood-lined valley in southwestern Marin, containing the last significant old-growth stands in the county, meant that millions of visitors from around the region and the world would get to witness these magnificent trees. The park's anniversary caps a remarkable century of conservation in the Bay Area.

Shifting Sands

At the mouth of Tomales Bay, sand dunes and seasonal wetlands coexist uneasily with California's largest coastal campground. The dunes at Lawson's Landing, home to rare butterflies and plants like the dune tansy, are among the few left of a once-common coastal habitat that could be restored and maintained as a healthy, functioning ecosystem. But can that be accomplished without driving out the family-run camping operation at the dunes that, since 1957, has been an affordable summer getaway for thousands of visitors?

Forgotten Foundation

On a trail at Mount Tamalpais or Diablo, perfectly set stone steps make an ascent easier; farther along, a massive log bridge crosses a rugged ravine. It's common to pass by and take these structures, and those who made them, for granted. This spring marks the 75th anniversary of the inauguration of Franklin Delano Roosevelt, whose epic New Deal work projects brought us not only dams and bay fill but also enduring public trails and other park infrastructure that thousands of people use today with little knowledge of their origins and the great nationwide social experiment that built them.