Sandstone Peak Hiking Guide
Sandstone Peak stands at the highest point in the Santa Monica Mountains, rewarding hikers with sweeping Pacific Ocean views and dramatic volcanic rock formations at the summit. The 6-mile out-and-back route gains roughly 1,100 feet through dense chaparral and open ridgelines, making it a genuinely satisfying challenge without being punishing. Dogs on leash are welcome, and the trailhead off Yerba Buena Road is accessible from both Malibu and the western San Fernando Valley.
Trail Overview and Route Description.
The standard route to Sandstone Peak begins at the Circle X Ranch trailhead, managed by the National Park Service as part of the Santa Monica Mountains National Recreation Area. Most hikers take the Backbone Trail in combination with the Mishe Mokwa Trail to form a loop, though many opt for the direct out-and-back along the Backbone Trail. The path climbs steadily through coastal sage scrub and chaparral before opening onto rocky ridgelines. Near the summit, a short Class 2 scramble over weathered volcanic rock leads to the 3,111-foot highpoint, marked by a metal register box. The loop variation adds variety and keeps the descent on softer, shadier terrain.
Summit Views and What to Expect at the Top.
On clear days — most common from late fall through early spring — the summit offers one of the finest unobstructed views available on any trail in Los Angeles County. Looking south and southwest, the Pacific Ocean stretches to the horizon with the Channel Islands visible on exceptionally clear mornings. To the north and east, the Conejo Valley, Simi Hills, and even the San Gabriel Mountains fill the skyline. The summit rocks themselves are striking: technically classified as volcanic breccia despite the trail's name, they form natural platforms perfect for resting and taking in the panorama. Wind can be strong and cool at the top even on warm days, so a light layer is worth carrying.
Trailhead Access and Parking
The Circle X Ranch trailhead sits on Yerba Buena Road, approximately 5 miles north of Pacific Coast Highway near the Los Angeles-Ventura county border. The NPS maintains a paved parking area with restroom facilities. Parking is free, though the lot can fill on weekend mornings between March and May when wildflowers are blooming. Arriving before 8 a.m. on weekends ensures a spot. Malibu Creek State Park and Point Mugu State Park are both accessible within a short drive for those looking to extend the day. Cell service is limited on the upper trail, so download offline maps before leaving the trailhead.
Flora, Wildlife, and Seasonal Highlights.
The Santa Monica Mountains host an exceptionally biodiverse stretch of California chaparral, and the Sandstone Peak corridor is no exception. Spring — typically February through April — brings ceanothus blooms, black sage, and scattered poppies along the lower slopes. Mule deer are frequently spotted near dawn and dusk, and California condors have been observed riding thermals above the ridgeline, as the area lies within their reintroduction range. In winter, migrating raptors move through, and the reduced brush makes wildlife spotting easier. Summer hiking is possible but the exposed ridgeline gets hot by midday; if you go, start no later than 7 a.m. and carry extra water.
Safety Considerations and Trail Etiquette.
The scramble section just below the summit involves using hands for balance on volcanic rock; standard hiking footwear with grip is sufficient, but sandals are not appropriate. Rattlesnakes are present throughout the Santa Monica Mountains year-round and particularly active in spring and early summer — watch where you place hands and feet near rock outcroppings. The trail is well-marked but several use trails branch off near Circle X Ranch; staying on signed NPS routes avoids confusion. Dogs must remain on leash at all times per NPS regulations. Pack out all waste, including dog waste, as trash receptacles at the trailhead fill quickly on busy weekends.
Group Hiking and Why This Trail Works Well for Groups.
Sandstone Peak's moderate difficulty and consistent trail quality make it one of the best group hike options in the western Santa Monica Mountains. The summit rocks provide ample space for groups to spread out, eat lunch, and enjoy the view without crowding a narrow ridgeline. The loop variation via Mishe Mokwa Trail has enough variation in terrain to keep mixed-ability groups engaged, and rest spots at Split Rock — a massive volcanic boulder about halfway around the loop — give slower hikers a natural regrouping point. Groups with dogs benefit from the leash-friendly policy and the availability of shade trees along the canyon sections of the Mishe Mokwa Trail.
Hiking tips for Sandstone Peak
- Start early on weekends — the Circle X Ranch parking lot fills by 9 a.m. in spring and can leave latecomers parking along a narrow shoulder for a longer road walk.
- Carry at least 2 liters of water per person; there are no reliable water sources on the trail, and the exposed ridgeline increases dehydration risk even in cool weather.
- The summit scramble is straightforward but slippery when wet — if recent rain has passed through, give the volcanic rock an extra day to dry before attempting the highpoint.
- Bring a windbreaker regardless of valley temperatures; the summit sits exposed to ocean winds and can be 10 to 15 degrees cooler than the trailhead.
- Download the NPS Trails of the Santa Monica Mountains map or a GPX track before you go — cell service drops out past the first mile and the loop junction signs can be easy to miss in low light.
Nearby trails to explore
- Mishe Mokwa Trail to Split Rock.
- Tri-Peaks Trail
- Circle X Ranch to Grotto Trail
Hike this trail with TrailMates
Planning a summit hike to Sandstone Peak? TrailMates makes it easy to find hiking partners who match your pace and skill level, organize a group meetup that meets the 3-person safety minimum, and coordinate the early start this trail demands. Download the TrailMates app or download TrailMates from the App Store and connect with fellow Santa Monica Mountains hikers today.