Sacramento NWR Complex - flooding at Sutter NWR

UPDATED February 27, 2024:


CLOSED due to flooding:

  • Colusa NWR Auto Tour
  • Sutter NWR Spring Trails (due to open Feb 15 but postponed due to flooding)
  • Sacramento NWR Spring Trails (opening postponed until March 1)


  • Sacramento NWR Auto Tour and Trails
  • Colusa NWR walking trail and observation platform
  • Llano Seco Unit of Steve Thompson NCV WMA trail and observation platform

Conditions are subject to change - please use caution and recreate safely.

New information will be posted here and to our Facebook Page immediately as it is determined.

Visit Us

Welcome to the Colusa National Wildlife Refuge  

Colusa National Wildlife Refuge is just one of the 5 National Wildlife Refuges and 3 Wildlife Management Areas that make up the Sacramento National Wildlife Refuge Complex. Colusa NWR offers a wide variety of recreational activities for visitors: a 3-mile driving tour, 1-mile walking trail, hunting, photography and more! 

PLAN YOUR VISIT <-- Click here to find all the information you need to visit the Complex.....

            • visitor center
            • auto tours
            • trails
            • photography
            • bicycling
            • hunting
            • environmental education
      • HOURS

Other Facilities in the Complex

Colusa National Wildlife Refuge is managed as part of the Sacramento National Wildlife Refuge Complex, with headquarters at Sacramento National Wildlife Refuge. The Refuge Complex is comprised of 5 National Wildlife Refuges (Sacramento, Delevan, Colusa, Sutter and Sacramento River NWRs) and 3 Wildlife Management Areas (Willow Creek-Lurline, Butte Sink and Steve Thompson North Central Valley WMAs).

Rules and Policies

Plan Your Visit  <-- Please see the Rules and Policies section on our Plan Your Visit page


Colusa National Wildlife Refuge
C/O Sacramento National Wildlife Refuge Complex752 County Road 99WWillows,CA95988-9639
Driving Directions

Colusa NWR Auto Tour and Walking Trail:

Traveling north or south on Interstate 5:

  • Exit at Highway 20, in Williams
  • Travel 6.7 miles east on Highway 20
  • Turn right onto O'Hair Road
  • Follow the road to the visitor area at Colusa NWR
  • Click here for a map with directions

Parts of Colusa NWR are also viewable via:

The auto tour route and walking trail off of Highway 20. 

  • From Abel Road (county-maintained road)*
  • From Ohm Road (county-maintained road)*
  • From Ware Road (county-maintained road)*

*Please be cautious when viewing from public roads as they are open to public traffic and may have soft shoulders. 

Colusa NWR Hunter Check Station:

Check station is approximately 11.4 miles southeast from Williams (Hwy 20 exit) and 7.6 miles east from Husted Rd exit

From Interstate 5, heading south:

From Interstate 5, heading north:

  • exit at Husted Rd (9 miles north of Arbuckle)
  • go 1.2 miles north on Husted Rd
  • go 2.9 miles east on Abel Rd
  • go 2 miles south on Lonestar Rd
  • go 1.5 miles east on Ware Rd to Check Station gate
  • Click here for a map with directions
Colusa NWR Auto Tour and Trail hours
Daily, year-round.
From one hour before sunrise to one hour after sunset.