The Petaluma River Wetlands are located in northern California. The wetlands stretch for about ten miles, from the small town of Petaluma down to the mouth of the river where it empties into San Pablo Bay that joins the San Francisco Bay. The wetlands range in width from less than a half mile to nearly two miles wide and include both saltwater and brackish water flows and seasonal freshwater ponds, bogs, marshes, tributary waterways and the river itself which is a brackish tidewater slough that meanders in a sinuous path through the wetlands.
