Category Archives: photography

A Sandstone Mammoth and a Spiral Labyrinth on the Bulldog Loop

A natural sculpture of a sandstone mammoth on the Backbone Trail

Updated June 26, 2023. The spiral has been periodically removed and rebuilt over the years. Google Earth historical imagery shows that it was removed sometime between March 2021 and February 2022. As of June 25, 2023, it had not yet been rebuilt.

Instead of struggling to escape a tar pit, this “mammoth” seems to have been caught up in 25-30 million-year-old sandstone.

The beast can be seen along the Backbone Trail, east of the Corral Canyon Trailhead. When running/hiking/riding east from the trailhead, the trail climbs over two steep steps and up to gap in the rock. In the photo above, the gap is on the left and the mammoth figure is on the right. From the gap, the trail descends a rock corridor to Mesa Peak fire road.

A closer look at the mammoth reveals that it is pockmarked and there are rocks embedded in the sandstone. The embedded rocks are cobble from an ancient river and the pockmarks are where rounded rocks have fallen out of the eroding sandstone.

Spiral labyrinth constructed of ancient stream cobble along the Backbone Trail
Spiral labyrinth along the Backbone Trail

Stream cobble that has eroded out of sandstone formations in this area has been used to construct a spiral labyrinth on the north side of Mesa Peak Fire Road. The cobble was tumbled and smoothed by streams that drained a range much older than the Santa Monica Mountains.

The title photo is from this morning’s run of the Bulldog Loop.

Some related posts: Moon and Sycamores, Malibu Creek State Park; Bulldog Loop Near Corral Canyon

Moon and Sycamores, Malibu Creek State Park

Moon and Sycamores, Malibu Creek State Park

The photograph Moon and Sycamores was taken at dawn, near Malibu Canyon and Piuma Road, at the start of this morning’s Bulldog Loop trail run in Malibu Creek State Park.

A quarter-mile from the top of Bulldog Mtwy fire road in Malibu Creek State Park.
A quarter-mile from the top of the Bulldog climb.

According to the Tempe sensor on my pack, the temperature ranged from a chilly 32° F along Malibu Creek to around 65° F on the crest. It was a near perfect morning to be outdoors.

Here’s an interactive, 3D terrain view of my GPS track from a previous run of the Bulldog Loop from Malibu & Piuma.

Some related posts: Bulldog Loop Plus the Phantom Loop; Trees, Bees, and a Washed-Out Footbridge on the Bulldog Loop in Malibu Creek State Park; After the Woolsey Fire: Bulldog Loop

Curious Coyote

Curious coyote at Upper Las Virgenes Canyon Open Space Preserve (Ahmanson Ranch)

This afternoon I was running down a single-track trail at Upper Las Virgenes Canyon Open Space Preserve (Ahmanson Ranch), when I noticed a coyote on a parallel track across a small ravine. From time to time I would stop and watch the coyote, and from time to time it would pause and watch me. After a few minutes, it went its way, and I went mine.

Earlier in the run I’d been in the same area when a coyote, running at full speed,  came blasting down a single-track trail. It turned into the brush about 30 yards in front of me. I’d seen similar behavior once before when one coyote was chasing another. In this case a hiker followed the coyote down the trail. In my experience, it usually take more than a simple encounter with a hiker to panic a coyote.

Coyote at Upper Las Virgenes Canyon Open Space Preserve (Ahmanson Ranch)
Another curious coyote. Click for a larger image.

Update February 18, 2021. The coyote pictured on the right was in the same area as the coyote in the title photo. When I first encountered the coyote, it had just crossed the trail and was below me. For some reason it reversed its course and climbed to a viewpoint above me, and watched as I ran up the trail. After a few moments it ran back down hill, retracing its original course across the trail. It was one of the most well-conditioned coyotes I’ve seen out at Upper Las Virgenes Canyon Open Space Preserve (Ahmanson Ranch).

I have had a couple of unusual encounters with coyotes out at Ahmanson. One time, a coyote decided to run with me, as if on a leash.

Some related posts: Coyote Tag, Coyote Tag II, Coyotes Are Curious Creatures

Valley Oak Silhouette

Valley oak silhouette

From a late afternoon run in Upper Las Virgenes Open Space Preserve (Ahmanson Ranch).

Some related posts: Guardian Oaks, Fallen Oak, Ahmanson Valley Oaks Battling Drought, After the Woolsey Fire: Ahmanson Ranch

Looking for the Highest Point of Upper Las Virgenes Canyon Open Space Preserve

View south from windmill hill in Upper Las Virgenes Open Space Preserve

From the top of the hill, the blue-sky view extended all the way to Saddle Peak and the Pacific. The gray-green chaparral was brittle and dry, and the grasslands sun-bleached. Rain was in the forecast, but for months, little had fallen. It was the day after Christmas, and I was near the northern border of Upper Las Virgenes Canyon Open Space Preserve. Fourteen years ago, nearly to the day, I had run to the same hill. That rain year had also been dry, and the area had looked much the same.

The Upper Las Virgenes Canyon Trail climbs steeply to windmill hill
Steep fire road to “windmill hill.”

Today’s run had started at dawn at the Victory Trailhead. It had been cold in the canyons for the first few miles — in the low 30s — but eventually temps had warmed. I had run west in East Las Virgenes Canyon, taken a connector trail to Las Virgenes Canyon, and then run north on the Upper Las Virgenes Canyon fire road past Bell Canyon to “windmill hill.”

The hill is labeled with an elevation of 2124′ on the 1967 Calabasas topo map. The top of an old windmill has been placed on its summit. The windmill wasn’t there in 2006, and I wondered if it was from the infamous Runkle Canyon well. From the top of windmill hill I could see the high point of Upper Las Virgenes Canyon Open Space Preserve, a quarter-mile or so to the northeast.

High point of Upper Las Virgenes Canyon Open Space Preserve
High point of Upper Las Virgenes Canyon Open Space Preserve

Located at its northeastern corner, the point with the highest elevation in the Preserve is a hilltop that’s just south of “hill 2160” on the Calabasas quad. Marked by a prominent pine tree, hill 2160 is on Santa Susana Field Laboratory property. It overlooks an area of the SSFL where a partial meltdown of an experimental reactor occurred in 1959.

Leaving windmill hill behind, I ran east down the hill, and then north along the fire road toward Albertson Mtwy. I was still debating whether to do the side trip to the Preserve’s high point. There was no path or trail to the high point, and the upper part of the slope was thick with brush. After running past the hill and nearly to Albertson Mtwy, curiosity finally got the better of me. I turned around and ran back to a place on the fire road where I could access the high point.

View south from the high point of Upper Las Virgenes Canyon Open Space Preserve
View south from the high point of Upper Las Virgenes Canyon Open Space Preserve

There is a survey marker on the high point labeled “N.A.A.V. INC. L.S. 2379 1953.” This is where the Upper Las Virgenes Canyon Open Space Preserve, SSFL and Runkle Ranch properties meet. According to 3DEP Lidar data, the elevation of the high point is about 2162′.

The side trip to the high point and back took about 20 minutes. After returning to the fire road, I continued down to the junction with Albertson Mtwy, turned left, and followed it west to a junction with an Edison powerline service road. This road meanders south through a rugged canyon, and then climbs up and over a prominent ridge with some spectacular sandstone rock formations.

Mountain bikers in the backcountry of Upper Las Virgenes Canyon Open Space Preserve
Mountain bikers in the backcountry of Upper Las Virgenes Canyon Open Space Preserve

After topping out on the ridge, the service road descends to the junction of the Sheep Corral and Cheeseboro Ridge Trails. Today, I followed the Cheeseboro Ridge Trail south to the Las Virgenes – Cheeseboro connector. Once back in Upper Las Virgenes Canyon, I retraced my route from earlier in the day back to the Victory Trailhead.

Here is an interactive, Cesium 3D terrain view of most of the 20-mile route. The bushwhack to the Preserve high point and an exploration of the Norway Trail aren’t shown.

Some related posts: Upper Las Virgenes Canyon – Cheeseboro Ridge Loop, Upper Las Virgenes Canyon Backcountry, Trail Run and Hike to Peak 1842 at Ahmanson Ranch

Trippet Ranch Oak Grassland

Trippet Ranch oak grassland

Taken on today’s trail run from the “Top of Reseda” to Trippet Ranch and back.

Here’s a Cesium 3D interactive view of a GPS track of my usual route. Today I did the Garapito and Musch Trails on the way out, then ran the fire roads on the way back.

Some related posts: The Heavenly Ranch in the Hills, Garapito Trail Runs