
Steve Thompson North Central Valley
Plan Your Visit
Welcome to Steve Thompson North Central Valley Wildlife Management Area (including the Llano Seco Unit)!
This WMA is primarily composed of privately-owned properties under conservation easement, but does have one Service-owned property that is open to the public: the Llano Seco Unit. Located about 10 miles southwest of the city of Chico in Butte County, the Llano Seco Unit offers a Visitor Area with a Restroom and Information Kiosk, Observation Deck, Observation Mound and a Trail.
There are LOTS of recreational opportunities on the other refuges of the Complex, including Visitor Areas, Auto Tours, trails, bicycling, photography, and hunting.
Check out what the Sacramento NWR Complex has to offer! | ||
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| Activities | Information | Directions |
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Refuges of the Complex:
There are 5 National Wildlife Refuges and 3 Wildlife Management Areas that make up the Sacramento National Wildlife Refuge Complex: Sacramento NWR, Delevan NWR, Colusa NWR, Sutter NWR, Sacramento River NWR, Llano Seco Unit (STNCV WMA), Butte Sink WMA, Willow Creek-Lurline WMA
Contact Us:
Sacramento National Wildlife Refuge is the Headquarters for the Sacramento NWR Complex.
Office Hours are Monday-Friday, 8:00am-4:00pm (closed on all Federal Holidays).
(530) 934-2801
sacramentovalleyrefuges@fws.gov
Sacramento National Wildlife Refuge
752 County Road 99W
Willows, CA 95988
Hours and Directions:
| Refuge | Sacramento NWR | Delevan NWR | Colusa NWR | Sutter NWR | Llano Seco Unit | Sacramento River NWR |
|---|---|---|---|---|---|---|
| Visitor Area Hours |
Visitor Center: Auto Tour and Wetland Walk: open year-round, 1 hour before sunrise to 1 hour after sunset. Seasonal Trails: open February 15 to June 30, 1 hour before sunrise to 1 hour after sunset. | General wildlife viewing is limited to the bordering county roads. | Auto Tour and Trail: open year-round, 1 hour before sunrise to 1 hour after sunset. | Seasonal Trails: open February 15 to June 30, 1 hour before sunrise to 1 hour after sunset. |
Trail: open year-round, 1 hour before sunrise to 1 hour after sunset.
| Trails: open year-round, 2 hours before sunrise to 1.5 hours after sunset |
| Maps with Directions | Llano Seco Unit Directions | Sacramento River NWR Directions |
What to Expect
You can expect to see something different every time you visit the refuge, depending on the season.
- January: wildlife viewing is less reliable as birds disperse to find food. Waterfowl counts average 995,000 and 100% of the wetlands are flooded.
- February: Winter burning is done to rejuvenate vegetation and nutrients. Waterfowl counts average 548,000 and 99% of the wetlands are flooded.
- March: Drawdowns begin to germinate food plants and prepare for summer field work. Waterfowl numbers decline as they migrate north. Waterfowl counts average 243,000 and 95% of the wetlands are flooded.
- April: Shorebirds stop by to use the shallow drawdowns on their way north; neotropical songbirds also stop by on their way north. Waterfowl counts average 80,000 and 75% of the wetlands are flooded.
- May: Nesting occurs for summer residents. Waterfowl counts average 6,700 and 15% of the wetlands are flooded.
- June: Irrigations are done to bring food plants to maturity; grazing occurs to manage invasive species and encourage native plants; field work begins. Waterfowl counts average 6,900 and 15% of the wetlands are flooded.
- July: Field work continues to control invasive species and enhance habitat. Waterfowl counts average 6,300 and 15% of the wetlands are flooded.
- August: Summer residents remain: mallards, wood ducks, herons, egrets, grebes, swallows, turtles, snakes, jackrabbits, deer, otters and many more! Waterfowl counts average 23,000 and 15% of the wetlands are flooded.
- September: Fall flood-ups begin and are staggered to provide fresh food for newly arriving migrants. Shorebirds stop by on their way south. Waterfowl counts average 348,000 and 25% of the wetlands are flooded.
- October: Ducks arrive by the thousands. Waterfowl counts average 1,500,000 and 75% of the wetlands are flooded.
- November: Geese arrive by the thousands, and waterfowl numbers peak at the end of the month. Evening fly-offs occur at dusk as birds go out to feed in the rice. Waterfowl counts average 1,800,000 and 95% of the wetlands are flooded.
- December: Waterfowl numbers peak at the beginning of the month, and raptor numbers peak as they follow the waterfowl. Ducks disperse across the valley at the end of the month, as goose numbers peak. Waterfowl counts average 1,400,000 and 100% of the wetlands are flooded.
Found a baby bird? Injured wildlife?
The refuge does NOT rescue, rehabilitate or accept animals. Please do not call the refuge regarding injured or orphaned animals. You can visit California Department of Fish and Wildlife's Native Wildlife Rehabilitation for resources near you.
Facilities at Steve Thompson North Central Valley
Open full location mapActivities
Get Involved
Find out How You Can Get Involved!
Find out more about Volunteer opportunities with Sacramento NWR Complex, and our non-profit partner Friends of the Sacramento National Wildlife Refuge by visiting our Get Involved page.
Services
The Steve Thompson NCV WMA offers habitat management, conservation easement programs, and technical assistance. Managed wetlands include seasonal, irrigated, and permanent/semi-permanent wetlands, as well as riparian areas and uplands. The Private Lands Program provides financial and technical assistance to landowners for habitat restoration, enhancement, and protection.
About
ABOUT US
Established in 1991, the Steve Thompson North Central Valley Wildlife Management Area preserves crucial wetland habitat for wintering waterfowl and shorebirds across 11 California counties. It consists of over 14,700 acres of conservation easements on private lands and the 1,732-acre Llano Seco Unit, which is part of the last intact Mexican land grant in California. While the easements are managed wetlands on private property, the Llano Seco Unit provides public access for wildlife observation, photography, and environmental education. The unit supports diverse species including bald eagles, sandhill cranes, and several federally threatened or endangered species.
Find out MORE about What We Do, Conservation & Partnerships, and Our Mission on our About Us page!



