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Will Rogers – Rivas Canyon – Temescal Canyon Trail Run

first published October 10, 2021 & last updated September 9, 2022 Gary Valle

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Backbone Trail above Will Rogers State Historic Park

The previous weekend I’d done an out and back run from the “Top of Reseda” to the Oak Tree on the Rogers Road segment of the Backbone Trail. It’s an enjoyable run I could do on one bottle of water and get back by mid-morning. Including Temescal Peak, the run was about 14 miles roundtrip, with about 1800′ of elevation gain/loss.

This weekend, I hadn’t expected to be back on the Backbone Trail and headed for the Oak Tree again, but last weekend’s run reminded me that I hadn’t done the Will Rogers – Rivas Canyon – Temescal Canyon/Ridge loop in a couple of years.

The 20+ mile loop is an outstanding trail run that is both challenging and scenic. Done clockwise from the Top of Reseda, the run down Rogers Road is as enjoyable as the climb out of Temescal Canyon is difficult. On paper, the elevation gain/loss is around 3400′, but for me the run is usually a bit more strenuous than that stat would suggest.

Century City, Downtown Los Angeles, San Gorgonio Mountain and San Jacinto Peak

On the way out I usually do a short side trip to Temescal Peak, and on the way back a short detour to Temescal Lookout. With good visibility, both points have extensive, 360-degree views. Temescal Peak can be accessed from the Backbone Trail about 0.1 mile east of Temescal Ridge Fire Road via a use trail. Temescal Lookout is just off the Temescal Ridge Fire Road, about 0.5 mile north of the Trailer Canyon/Temescal Ridge Fire Road junction.

On a clear day, there is a long list of places and peaks visible along the route. Among them are Century City, Downtown, Santa Monica Bay, Palos Verdes, Catalina, Boney Mountain, Hines Peak, San Gabriel Mountains, Mt. Baldy, Santiago Peak, and sometimes San Gorgonio Mountain and San Jacinto Peak.

The steep climb on Temescal Ridge Fire Road up to Green Peak

Water is usually available at Will Rogers State Historic Park at the restrooms adjacent to the main parking lot and polo field. I’ve also topped off my water at the Temescal Canyon trailhead. The Rivas Canyon Trail is used to connect Will Rogers SHP to Temescal Canyon.

Here’s an interactive, 3D terrain view of the Will Rogers – Temescal trail run. 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.

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Not So Busy Sandstone Peak

first published September 19, 2021 & last updated July 23, 2022 Gary Valle

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Boney Mountain area peaks from the top of Sandstone Peak.

With the closure of Los Padres, Angeles, San Bernardino, and Cleveland National Forests until Thursday, I did not expect to find the summit of the highest peak in the Santa Monica Mountains empty. Even if it was by happenstance, I’ve rarely found the summit of Sandstone unoccupied on a Saturday or Sunday morning.

Like last weekend’s run, this morning’s trail run started at the Wendy Drive Trailhead on Potrero Road in Newbury Park. But today’s route had a lot more elevation gain, and some steep scrambling up the rocks of Boney Mountain’s Western Ridge. It’s an adventurous way to do Boney Mountain, Tri Peaks, and Sandstone Peak, and get in some excellent running on a very scenic stretch of the Backbone Trail.

Overall, the route was in the best shape I’ve seen since the 2018 Woolsey Fire. The path that works up the north side of Tri Peaks and around the east side of its summit blocks was relatively clear. Following trailwork by the Santa Monica Mountains Trails Council, the Chamberlain Trail segment of the Backbone Trail was once again an enjoyable downhill run.

Here’s an interactive, 3D terrain view of a GPS trace of my usual route (yellow) to Sandstone Peak from Wendy Drive via Boney Mountain’s Western Ridge, and return via Big Sycamore Canyon. A GPS track of the Cabin trail is also shown. Variations of the route include doing the Mishe Mokwa loop after climbing Sandstone Peak; and returning to Sycamore Canyon via Serrano Valley/Canyon instead of Blue Canyon.

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Fogbow Near the Top of Hell Hill in Pt. Mugu State Park

first published September 16, 2021 & last updated July 23, 2022 Gary Valle

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Fogbow Near the Top of Hell Hill in Pt. Mugu State Park

Fogbows form opposite the sun in a manner similar to rainbows, except the water droplets that create a fogbow are much smaller than raindrops. Because a fog droplet is so small, the physics of the interaction is different. The result is often a diffuse, primarily white bow.

The photograph of the fogbow was taken Sunday morning on an out and back run from Wendy Drive to Mugu Peak. The sun was about 14 degrees above the horizon. More about fogbows and other atmospheric phenomena can be found on Les Cowley’s Atmospheric Optics website.

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Rabbitbrush Along the PCT Near Mt. Hawkins

first published August 22, 2021 & last updated July 23, 2022 Gary Valle

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Rubber rabbitbrush (Ericameria nauseosa) along the PCT, near Mt. Hawkins

From mid Summer into Fall, the vibrant yellow flowers of rabbitbrush add a refreshing hit of color to the greens, grays, and browns of the San Gabriel Mountains.

The title photo was taken along the PCT, at an elevation of about 8600′, near Mt. Hawkins. The area was burned in the 2002 Curve Fire. Here, and elsewhere in the burn area, new trees — now in their teens — are slowly replacing some of the trees lost in the fire.

Related post: Bumblebee Feeding on Rabbitbrush

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Cool Running at Ahmanson Ranch

first published August 19, 2021 & last updated September 9, 2022 Gary Valle

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East Las Virgenes Canyon Trail in Upper Las Virgenes Canyon Open Space Preserve

Hikers, riders, and runners reveled in the unseasonably cool afternoon temperatures at Ahmanson Ranch (Upper Las Virgenes Canyon Open Space Preserve) yesterday.

According to the NWS, the high temperature of 75 degrees at Woodland Hills (Pierce College) was the lowest for the date on record. The temperature at the Cheeseboro RAWS didn’t reach the 70s until around 1:30 p.m., and finally hit 75 around 4:30 p.m. Earlier in the day, the station recorded 0.03 inch of light rain.

I took advantage of the cooler weather to do an out and back trail run from the Victory Trailhead to Cheeseboro Canyon. The nine mile run has an elevation gain/loss of around 1000′. Except for a couple of hills, it’s a relatively fast-paced route, particularly on the way out to Las Virgenes Canyon. There are two creek crossings in Las Virgenes Canyon. These dried up earlier this year, but in some years the crossings have enough water to get your shoes wet.

It’s not a good run to do when it’s hot, and in the Summer Ahmanson is almost always hot. In-the-sun temperatures are typically above 100 degrees, and sometimes reach 110 degrees or more. More than once I’ve encountered people on Ahmanson area trails that misjudged the conditions and were out of water. And sadly, dogs are especially susceptible to heat.

Here’s an interactive, 3D terrain view of the run. 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.

Those that recreate at Ahmanson will recognize the title photo as East Las Virgenes Canyon, about 1.1 mile from the Victory Trailhead. This is where a trail/road to Lasky Mesa forks off the main road.

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After the Palisades Fire – Snake Tracks and Monkeyflowers

first published August 15, 2021 & last updated February 2, 2024 Gary Valle

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Rattlesnake track on Eagle Springs Fire Road following the May 2021 Palisades Fire

The rattlesnake track above was one of several snake tracks on Eagle Springs Fire Road this morning. This area, which is below Eagle Rock in Topanga State Park, was severely burned in the May 2021 Palisades Fire.

This photo of a blooming bush monkeyflower in the same area underscores the resilience of the chaparral biome.

Update February 2, 2024. Bush poppy (Dendromecon rigida) has become a prolific and dominant fire follower in this area.

Photography and inspiration from running and other adventures in the Open Space and Wilderness areas of California, and beyond. No ads. All content, including photography, is Copyright © 2006-2024 Gary Valle. All Rights Reserved.