Sepulveda Basin Wildlife Reserve is a rich urban oasis in the San Fernando Valley offering diverse habitats, abundant birdwatching, and peaceful walking trails close to Los Angeles.
The Sepulveda Basin Wildlife Reserve occupies approximately 225 acres within the vast Sepulveda Flood Control Basin in northern Los Angeles, California. This protected area serves a dual purpose: flood control in the Los Angeles River system and the preservation of essential habitats for local flora and fauna. The reserve encompasses several freshwater wetlands, grassy meadows, and riparian woodlands, creating a vital stopover and breeding ground for migratory and resident bird species in the Pacific Flyway. Established in the late 20th century during the development of the Los Angeles flood control infrastructure, the reserve provides both conservation and recreational benefits in an urban environment. Visitors are drawn to the Reserve for its excellent birdwatching opportunities, where species such as Great Blue Herons, Black-crowned Night Herons, Western and Clark's Grebes, and an array of songbirds can be observed. The area features flat, accessible trails for walking, jogging, and cycling, making it popular with nature enthusiasts, families, and photographers. The Wildlife Reserve is adjacent to the larger Sepulveda Basin Recreation Area, which includes sports fields, mountain bike trails, and picnic sites, offering a balance of natural refuge and recreational amenities. Key landmarks such as the Great Blue Heron rookery highlight the Reserve’s ecological importance. Educational signage and interpretive kiosks provide information on local wildlife and wetland ecosystems. The Reserve’s proximity to the San Fernando Valley urban environment makes it a unique refuge where visitors can connect with nature without traveling far from the city. Ongoing efforts by local park and wildlife agencies help maintain the health of the wetlands, control invasive species, and support habitat restoration.
Great Blue Heron Rookery – a large colonial nesting site
Wetland ponds supporting diverse aquatic and bird life
Flat, multi-use trails accessible for all ages
Interpretive signage explaining local ecology and flood control
One of the largest Great Blue Heron nesting colonies in Los Angeles, visible from designated observation points.
A series of man-made and natural ponds that support frogs, turtles, and water birds.
A flat, multi-use trail circling much of the Reserve, ideal for easy walks and bike rides.