Humboldt Bay National Wildlife Refuge

Humboldt Bay National Wildlife Refuge Castle Rock NWR is located just offshore of Crescent City. Others spend winter here or use the refuge for breeding and nesting.

Nestled within the heart of California’s redwood coast, Humboldt Bay National Wildlife Refuge was established in 1971 to preserve, restore, and enhance the natural diversity of native plant, fish and wildlife populations surrounding Humboldt Bay. Humboldt Bay National Wildlife Refuge was established in 1971 to protect critical habitat for the diverse array of birds, mammals, fish, amphibians, inve

rtebrates, and plants surrounding Humboldt Bay. Nestled within the heart of California’s redwood coast and traditional lands of the Wiyot Nation, the Refuges' Salmon Creek visitor center is conveniently located within a 15 minute drive of Fortuna, Eureka and Arcata. Trail maps and other information can be obtained at the visitor center, located at 1020 Ranch Road, Loleta, California. More information on species, habitats, and visitor services can be found on our website: https://www.fws.gov/refuge/humboldt-bay

Comprised of almost 5,000 acres, the refuge includes a unique mosaic of seasonally flooded freshwater wetlands, coastal dunes, estuarine eelgrass, meadows, mudflats, saltmarsh, brackish marsh, riparian wetlands, streams, forest, and offshore island habitat. These conservation lands support over 316 of birds, 40 species of mammals, and 100 species of fish and marine invertebrates, including steelhead, coho and chinook salmon, and Dungeness crab. Providing critical habitat to over half a million shorebirds during spring migration, the wetlands surrounding Humboldt bay have been designated a Western Hemisphere Shorebird Reserve Network Site of Hemispheric Importance. The refuge is also an important stopover for migratory birds traveling along the Pacific Flyway, where they rest and replenish their energy reserves. More than 50% of the Pacific brant goose population refuels on the eelgrass meadows growing in the shallow parts of Humboldt Bay. The Lanphere and Ma-le’l Dunes Units of the refuge have been designated a National Natural Landmark, as they represent one of the most diverse and highest quality remnants of coastal dunes habitat in the Northern Pacific Border Biophysiographic Region.

This Saturday, June 13, 9am to 12pm come to the Habitat Improvement Team Volunteer Workday for a morning of invasive pla...
06/12/2026

This Saturday, June 13, 9am to 12pm come to the Habitat Improvement Team Volunteer Workday for a morning of invasive plant removal. Wear long sleeves, long pants and closed-toe shoes. Bring drinking water. We will provide tools, gloves, snacks and a beautiful place to work. Meet at the Richard J. Guadagno Visitor Center & Headquarters, 1020 Ranch Road in Loleta.

Hello Friends! Join us on June 22 at 5pm
06/11/2026

Hello Friends! Join us on June 22 at 5pm

06/09/2026

Looks like a coordinated hunting effort at Hookton Slough! 🪿🪿🪿🪿🪿

Today, Refuge staff assisted Friends of the Dunes and several other wonderful partners with Kids Ocean Day!  Our communi...
06/03/2026

Today, Refuge staff assisted Friends of the Dunes and several other wonderful partners with Kids Ocean Day! Our communities young conservation hero's made a big contribution towards the restoration and conservation of our coastal and marine environments! 🐳🌊🐚🌾🦀

Here are some of the creations from Art & Nature at the Refuge on May 17 - Nature Inspired Painted Dot art
05/31/2026

Here are some of the creations from Art & Nature at the Refuge on May 17 - Nature Inspired Painted Dot art

Beach Morning Glory, calystegia soldanella, is one of the many beautiful and amazing native plants that make up the flor...
05/30/2026

Beach Morning Glory, calystegia soldanella, is one of the many beautiful and amazing native plants that make up the floral tapestry of our coastal dune habitats. Growing right above the high-tide line, it is a vital ecological anchor that uses deep rhizomes to stabilize shifting sands and prevent coastal erosion.

Today, May 9,  is one of two World Migratory Bird Days set in 2026. As far as we are concerned, every day is a good day ...
05/09/2026

Today, May 9, is one of two World Migratory Bird Days set in 2026. As far as we are concerned, every day is a good day to celebrate migratory birds!
Learn more at

World Migratory Bird Day In 2026, World Migratory Bird Day will be celebrated on May 9 in the spring and October 10 in the fall. The conservation theme this year is Every Bird Counts – Your Observations Matter. It highlights the role of public participation in collecting data on migratory bird pop...

https://www.fws.gov/wetlands-month❤🐾🦆
05/09/2026

https://www.fws.gov/wetlands-month❤🐾🦆

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Come to the Habitat Improvement Team Volunteer Workday, Saturday, May 9, 9am to 12pm. We need your help spreading mulch ...
05/09/2026

Come to the Habitat Improvement Team Volunteer Workday, Saturday, May 9, 9am to 12pm. We need your help spreading mulch around native plantings. We are seeing great results in the rewilding of an area next to the refuge entrance. Bring drinking water and wear long sleeves, long pants and closed-toe shoes. We'll provide tools, gloves and snacks. Meet at the Visitor Center, 1020 Ranch Road in Loleta.

Join us on Sunday, May 3, 10am to 1pm, at Ma-le'l Dunes North and help restore habitat during a Volunteer Workday removi...
05/02/2026

Join us on Sunday, May 3, 10am to 1pm, at Ma-le'l Dunes North and help restore habitat during a Volunteer Workday removing non-native, annual grasses. Wear long sleeves, long pants, closed-toe shoes and bring drinking water. Be prepared for walking up and down in loose sand. We will provide tools, gloves and snacks. From Highway 255 in Manila, take Young Lane west and follow signs.

Address

1020 Ranch Road
Loleta, CA
95551

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm
Saturday 8am - 5pm
Sunday 8am - 5pm

Telephone

+17077335406

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