The Napa-Sonoma Marshes Wildlife Area is approximately 15,200 acres of baylands, tidal sloughs and wetland habitat. Many waterfowl species and shorebirds including the California Ridgway's rail can be found here. Most of the area is accessible by boat only, though some areas can be accessed from land.
This area is regularly used by hunters, fisherman, bird watchers, photographers, and hikers. It is comprised of the following units: Huichica Creek, Napa River, Southern Crossing, Ringstrom Bay, Wingo, Tolay Creek, Sonoma Creek, White Slough, Green Island, and American Canyon.
Please consult the Wildlife Tour Guide (PDF) for a description of the wildlife at each unit.
For more information, please contact the Bay Delta Region Fairfield office at (707) 428-2002.