Delevan National Wildlife Refuge

Delevan National Wildlife Refuge is a protected wetland and upland habitat in the northern Sacramento Valley designed to support migratory birds. The refuge features shallow lakes, marshes, and grasslands connected by viewing roads that allow visitors to explore the landscape on foot or by vehicle.

The refuge was established in the early 1960s as part of a national effort to protect waterfowl populations across the country. It was created through a federal program that acquired land from willing sellers to preserve critical habitat for migratory birds.

Thousands of waterfowl descend into shallow waters each winter to feed, filling the wetlands with constant movement and activity. Visitors witness this seasonal gathering as a natural display of migration patterns that have shaped the region for centuries.

Visitors can observe birds from designated viewing areas accessible via Maxwell Road and Four Mile Road, which can be explored on foot or by car. Winter months offer the most active viewing opportunities, though access varies depending on water levels and seasonal management activities.

The refuge harbors a rare plant called palmate-bracted bird's beak, found in only a handful of locations across California. This specialized vegetation thrives in the specific wet-dry cycles of the area, which managers maintain through careful water management throughout the year.

Location: California

Inception: 1962

Part of: Sacramento National Wildlife Refuge Complex

Website: https://fws.gov/refuge/delevan

GPS coordinates: 39.31660,-122.10100

Latest update: December 11, 2025 11:04