Napa-Sonoma Marshes Wildlife Area Updated:11/2022

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.

Contact Napa-Sonoma Marshes Wildlife Area

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Contact Napa-Sonoma Marshes Wildlife Area

7329 Silverado Trail
Napa, CA  94558
Phone: (707) 226-3641

Service Area

Services provided in:
  • Napa County, California
  • Solano County, California
  • Sonoma County, California