The park is situated on land once owned by the O'Melveny family, founders of one of Los Angeles' oldest law firms.
The site was previously used for commercial citrus farming, and remnants of these orchards are still visible today.
It sits at the base of the Santa Susana Mountains, which serve as a geographical barrier between the San Fernando and Santa Clarita Valleys.
The park's trail system connects to the regional Rim of the Valley Trail corridor.
The area is known for its diverse native plant species, including the Coast Live Oak and various sage varieties.
O'Melveny Park is the second-largest park in Los Angeles, spanning 672 acres of rugged canyon terrain in the Santa Susana Mountains. The landscape features a mix of flat grassy areas for recreation and steep, unpaved trails climbing into the foothills. It is home to diverse local wildlife, including deer, coyotes, and various raptors. The park's highest elevation provides panoramic views of the San Fernando Valley and the Santa Clarita Valley. Vegetation ranges from citrus groves, a vestige of the area's agricultural past, to native chaparral and oak woodlands. It is a popular destination for hikers and equestrian enthusiasts looking for challenging elevation gains. There are no permanent natural water features, though seasonal drainage occurs after heavy winter rains.
The ridgeline trail during sunset for a view of the valley lights or the citrus grove during the spring blooming season.
Bring ample water as there are no drinking fountains located along the upper mountain trails.
Sun protection is essential, as the steep, higher-elevation sections of the park offer almost no tree cover.
Stick to marked trails to avoid poison oak, which is prevalent in the canyon brush.
Attempting the summit trails during midday in summer months, as temperatures can be significantly higher than in the coastal basin.
Leash your dogs, stay on designated trails to prevent erosion, and pack out all trash.
