Wooden pier in the Elkhorn Slough, a tidal estuary.

Wooden pier in the Elkhorn Slough, a tidal estuary.

Jamie Pham / Alamy Stock Photo

Image ID: BR2DAC

Elkhorn Slough is a tidal slough and estuary in Monterey County, California. Elkhorn Slough harbors the largest tract of tidal salt marsh in California outside of San Francisco Bay and provides habitat for hundreds of species of plants and animals, including more than 340 species of birds.

Location: Elkhorn Slough, California, USA