This is one of my favorite medium length trail runs in the Santa Monica Mountains. It starts at the Ray Miller trailhead and explores the scenic grasslands of the Serrano and La Jolla Valleys. Along the way there are spectacular ocean and mountain vistas from the Ray Miller Trail and the summit of Mugu Peak.
Most of the route is on single track trail, and except for a short out & back segment to “The Ranch” in Serrano Valley, it is a complete loop of about 20 miles. Many variations are possible.
One of the better online maps I’ve found of the area is an Interagency Trail Management Map produced by the NPS Santa Monica Mountains National Recreation Area GIS Lab. It shows the status of trails and public lands in the Santa Monica Mountains and is broken into three parts: West – Central – East. Additional NPS SMMNRA trail management plan maps include Proposed Backbone Trail Facilities and Trails and Proposed Regional Trails.
Here is a Cesium browser View of a GPS trace of our route from the Ray Miller trailhead and through Serrano and La Jolla Valleys.
The idea was to do an interesting trail run that wasn’t quite as long and strenuous as last week’s Bandit 30K Course Preview. That was the idea. I could have calculated the mileage and elevation gain of our projected route, but sometimes part of the fun of trail running is not knowing the exact route, how long it will take, or how strenuous it might be.
This particular exploration would visit two of the most scenic areas in the Santa Monica Mountains — Serrano Valley and La Jolla Valley. Many variations of this loop are possible. Our base route included the Ray Miller/Backbone Trail, Fireline Trail, Serrano Canyon Trail, Serrano Valley Trail, Old Boney Trail, Wood Canyon Vista Trail, La Jolla Valley Loop Trail, La Jolla Canyon Trail and connecting roads.
In addition to its wonderful scenery, this course is characterized by moderate uphills that are generally very runnable. The side trips to to the old ranch site in Serrano Valley, and to Mugu Peak pushed the route beyond the 30K mark, but were worth every step. Here’s a Google Earth image and Google Earth KMZ file of a GPS trace of the route. Since none of us had done the eastern leg of the La Jolla Valley Loop Trail, this time we did Mugu Peak from the east. The route around the valley to the western side of Mugu Peak is also shown.
Not all trails will have a smooth tread, good footing, trimmed vegetation, trail signs and other luxuries. What you see is what you get, and sometimes what you get is not perfect.
That was the case on last May’s run to the Serrano Valley from Wendy Drive. A long stretch of the Old Boney Trail was all but impassable. The trail was badly overgrown, the day foggy and gray, and everything was dripping wet.
Serrano Canyon Trail
But there is just something about immersing yourself in the good and not-so-good that nature offers. It’s part of what nature is. The splendid display of wildflowers seen on that run was a result of the rainy season that produced the overgrown trail.
Curious to see how that section of trail had changed in seven months, this morning I was back on the Old Boney Trail and on my way to Serrano Valley. It had rained around 4 inches during the week, and I expected the mud to be like glue and creek crossings wet.
Use of the trail had improved its condition. There were still some overgrown sections but most of the time I could see my feet, as well as the ruts and rocks on the trail. It was muddy in the usual places but the globs of mud on my shoes didn’t reach dinner plate proportions.
Fireline Trail with Boney Mountain in the distance.
In the wake of the storm, the weather was exhilarating. Postcard clouds decorated the crest of Boney Mountain and a cool breeze filtered through the canyons. Despite all the rain, Serrano Creek was flowing at a modest level, and I emerged from Serrano Canyon with dry shoes.
It was a day for a longer run, and when I reached Sycamore Canyon fire road, I turned left (south) and continued down the canyon to the Fireline Trail. Going up the Fireline Trail to Overlook Fire Road extended the run and expanded the views. A right turn on Overlook Fire Road lead to the top of the Ray Miller Trail, and from there to the Hub. These junctions offer additional opportunities for extending the run.
Today, I ran down Hell Hill, over to the Two Foxes Trail via Wood Canyon Fire Road, then picked up Sycamore Canyon Fire Road near the Danielson Multi-Use Area and followed it to the Upper Sycamore Trail, Danielson Road, and Satwiwa. This interactive, 3D terrain view shows the route.
Serrano Valley and Canyon had been on my run list for a few weeks. I was curious to see how December’s rainfall had affected Serrano Canyon. Runoff from those storms had (once again) washed out sections pf the Blue Canyon Trail and Upper Sycamore Trail. Had the Serrano Canyon Trail also been damaged?
Greenbark Ceanothus along the Old Boney Trail
It was a good day to visit Serrano — I was looking to do a longer run; the weather was perfect; the meadows green; and many wildflowers were in bloom.
There are a couple of ways I like to run to Serrano Valley from the Wendy Drive Trailhead. Both do the initial 1.6 mile, 900′ climb up the Old Boney Trail from Danielson Road. At the top of the climb, one route goes up and over Boney Mountain’s western ridge to the Backbone Trail, and the other continues on the Old Boney Trail. Both routes join at the Chamberlain junction of the Backbone and Old Boney Trails. I’d done the western ridge of Boney Mountain recently, so opted for the Old Boney route.
Prickly phlox along Overlook Fire Road
Wildflowers were everywhere. The December rain and February heat wave seems to have encouraged many plants to bloom — among them blue dics, Encelia, clematis, California poppy, greenbark Ceanothus, shooting star, nightshade, paintbrush, poison oak, milkmaids, prickly phlox, hummingbird sage, and larkspur.
Serrano Valley was Spring-green and spectacular. Serrano Creek was gurgling away, and the Serrano Canyon Trail had survived December’s storms. After a pleasant run down Serrano Canyon, I stopped to get some water from the faucet at the junction of the Serrano Canyon Trail and Sycamore Canyon.
A right turn here — up Sycamore Canyon — produces a run of about 20 miles. Today I was looking to do a little more than that, so turned south and ran about a quarter-mile down Sycamore Canyon and picked up the Fireline Trail. This trail gains about 700′ in elevation on its way up to Overlook Fire Road.
La Jolla Valley from Overlook Fire Road
Overlook Fire Road leads northwest to the top of the Ray Miller Trail. I was feeling good and briefly debated descending to the Ray Miller Trailhead. I did a quick estimate of the mileage. I was at about mile 14. Descending Ray Miller would add about 2.5 miles, and then the run back from the trailhead to Wendy would add another 12 miles. Hmmmm… nearly 29 miles. My legs were way ahead of my brain, and were already continuing up Overlook Fire Road.
I followed the usual route back — Overlook -> Hell Hill -> Wood Canyon -> Two Foxes -> Sycamore Canyon -> Upper Sycamore -> Danielson Road -> Satwiwa. The paved part of Sycamore can be a bit tedious and it helped when I happened upon a couple of friends.
Here is an interactive, 3D terrain view of the GPS track of my route. The map can be zoomed, tilted, rotated, and panned. To change the view, use the control on the upper right side of the screen. Track and placename locations are approximate and subject to errors. Poor weather, and other conditions may make this route unsuitable for this activity.
Illuminated by the rising sun and partially enveloped in cloud, Boney Mountain’s Western Ridge looked so inviting I thought about abandoning my planned run and climbing the ridge instead.
Boney Mountain’s Western Ridge from the Old Boney Trail
Pt. Mugu State Park is a great place for long, self-supported trail runs. The scenery is superb, the trails are generally in good condition, and water is usually available in several locations.
Today’s run took me to two of the most scenic areas in the Park — Serrano Valley and La Jolla Valley. This archived PDF map shows many of the trails in the area. The Wendy Drive trailhead is in the upper right corner of the map. La Jolla Valley is marked and Serrano Valley is near the “PARK” in the label “POINT MUGU STATE PARK.” Also see the Pt. Mugu State Park maps on VenturaCountyTrails.org
The marine layer kept the temperature cool for most of the run, but the sun finally broke through as I ran up Sycamore Canyon on the Two Foxes trail, on the way back to the Wendy Drive trailhead.
