geology, landscape, las llajas canyon, nature, photography, photography|landscape, rocky peak, running, running|adventures, trails, trails|smmc open space

Exploring Las Llajas

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Las Llajas Canyon, in the northeast corner of Simi Valley.
Las Llajas Canyon

First published in March 2008.

At times the site of a religious colony, a grit mine, an oil field, and a housing development, Las Llajas Canyon is now part of the Marr Ranch Open Space and Rocky Peak Park. Its oak groves, gurgling stream, varied plants, and unique geology make it a popular place to hike, run or ride.

According to California Place Names, Las Llajas might have originated from a misspelling of the Spanish word “llagas,” which literally means sores or wounds. Perhaps this was a reference to the area’s natural oil seeps. These would have been an important resource for the Chumash and early settlers.

The trailhead for Las Llajas Canyon is on Evening Sky Drive in Simi Valley. From the trailhead, it’s about 3.4 miles up the (mostly) dirt road to a windmill and oak-shaded trail junction. From the junction, a connecting trail crosses the creek and then climbs steeply to Rocky Peak Road. A strenuous 9.2 mile loop — Chumash-Las Llajas Loop — follows this route.

There are also some less-used side trails in Las Llajas Canyon. A use trail on the canyon’s east side starts about 0.4 mile from the trailhead and connects to Rocky Peak Road near the highest point in Rocky Peak Park. A very steep, eroded hill marks the beginning of the route. The trail ends at a large cairn near Rocky Peak Road. Fossiliferous limestone, composed of seashells, is found here. It is similar to that found at Coquina Mine.

The Coquina Mine trail starts about 1.9 mile from the Las LLajas trailhead. It climbs “Tapo Alto Mountain” on the west side of Las Llajas Canyon and appears to follow the route of a dirt road shown in the U.S.G.S. 1941 Santa Susana Quadrangle topo map.

About a half-mile up the trail splits — the Coquina Mine use trail switches back to the right, while a trail connecting to the Marr Ranch Trail continues straight ahead. After the switchback, the Coquina Mine trail traverses across a steep, rocky face that overlooks Las Lajas Canyon and then continues to the top of the peak. As the trail winds up the mountain, there are bits and pieces of rusted mining equipment and abandoned dig sites — signposts of success and failure on the meandering trail of time.

Thumbnail: P&H Model-206 Corduroy Power Shovel. Click for a larger image.
P&H Model-206 Corduroy Power Shovel

At the end of the trail, a few feet from the summit of the peak is a P&H Model-206 Corduroy power shovel. Nearly out of mountain, its bucket is poised to scoop another load of crushed seashell, waiting for its operator to return. Here’s a short video walk around the power shovel.

From P&H Mining Equipment:

“Thank you so much for this extraordinary image of a P&H 206! Our company built Model 206 machines during the 1920s and 1930s. They were offered in shovel configuration, such as the machine you discovered in Southern California, and also in construction crane, dragline, clamshell, pile driver and backhoe options. It is amazing to behold such a well-preserved Model 206. The arid environment must be a factor.”

The 1941 Santa Susana topo map shows two “COQUINA” mines in the area. They are labeled “TAPO COQUINA MINE” and “COQUINA MINE.” The mines are described in the Ventura County section of a 1947 California Journal of Mines and Geology report, “Limestone in California.” From the report:

“During the last 20 years there has been irregular production from deposits of shell limestone on Rancho Simi, north and east of north from Santa Susana. The quarries are on hills 2 1/2 miles apart and 1 to 2 miles from the Los Angeles County line.”

The report goes on to summarize the operation at Coquina Mine:

“In 1929 Tapo Alto Shell & Fertilizer Company leased the deposit and produced limestone until 1935. They dug limestone with a 1/4-cubic-yard gasoline shovel, and screened and crushed it in a plant having a daily capacity of 15 tons. The principal product was poultry grit…”

A more detailed description of the mine’s operation is found in the 1932 REPORT XXVIII OF THE STATE MINERALOGIST:

“Present quarry is 200 feet long by 70 feet wide, with a 40-foot face. Material is handled by gasoline shovel, having a 1/4-yard dipper, into a l 1/2-ton truck which hauls it about 200 feet to the brow of the hill where it is dumped into a chute 300 feet long. This chute empties into a hopper which discharges into the boot of an elevator; to trommel screen, 4-mesh, screenings to bin, thence to elevator and Cottrell vibrating screens ; products to two-compartment bin ; over-size from trommel to rolls and bin. The plant is so arranged that either product can be put on dump by means of a conveyor. Plant is operated by 25-h.p. Fairbanks Morse gas engine. Plant has a daily capacity of about 15 tons. Products are — 8 + 10-mesh for chickens and — 10-mesh for little chicks.”

Some related posts: Chumash-Las Llajas Loop, Not So Flat Las Llajas Canyon

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Which Stretch of the Backbone Trail Has the Longest Uninterrupted Descent and Most Elevation Loss?

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Runners descending the Backbone Trail pass Chamberlain Rock.
Runners descending the Backbone Trail pass Chamberlain Rock.

It’s a section of the westbound Backbone Trail that starts two miles west of Sandstone Peak and continues down the Chamberlain, Old Boney, and Blue Canyon Trails to the Danielson Multi-Use Area and Big Sycamore Canyon Fire Road. At the point where the trail turns south on the fire road, it has dropped about 2400 feet in 4.8 miles. Continuing south on the fire road, the Backbone Trail gradually descends another 100 feet over a mile and a half until it starts up the Wood Canyon Vista Trail.

What about the long downhill between Saddle Peak and Malibu Canyon? That would be a contender if it weren’t for a gradual uphill that starts a little east of the Piuma Road crossing. It gains about 180 feet over 0.8 mile. If that break in the downhill is ignored, then the stats for the two descents are similar.

Boney Mountain from Satwiwa.
Boney Mountain from Satwiwa.

This morning, I did the Backbone Trail segment from Sandstone Peak to the Danielson Multi-Use Area as part of a loop from the Wendy Drive Trailhead on Potrero Road in Newbury Park. Including the optional side trip to Sandstone Peak, the loop totals about 18 miles with around 4000′ gain/loss.

Fires and heavy rain the past decade have taken their toll on the Backbone Trail and other trails in the Santa Monica Mountains. Today, except for a short stretch near Chamberlain Rock, most of the long downhill was in decent shape and enjoyable to run.

Here’s an interactive, 3D terrain view of a GPS trace of my route. The eastern ridge route is also shown. The map can be zoomed, tilted, rotated, and panned using the navigation control on the right. Track and placename locations are approximate and subject to errors. Poor weather and other conditions may make this route unsuitable for this activity.

Some related posts:
Not So Busy Sandstone Peak
Looking for Boney Mountain
Backbone Trail Mystery

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I Stop for Cumulus Clouds

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Cumulus cloud - Photography by Gary Valle'

On my way to upper Las Virgenes Canyon from the Victory Trailhead of Ahmanson Ranch, I had to stop running and marvel at the intricacy and beauty of this cumulus cloud.

The cloud developed as another weak trough was passing through Southern California. For a few weeks the long-range outlooks have been advertising a change to a wetter weather pattern, but the expected transition keeps being delayed.

More posts from the category Nature & Clouds.

adventures, backbone trail, climbing, landscape, nature, photography, running, running|adventures, santa monica mountains, trails, weather

The Western Santa Monica Mountains from Topanga Lookout Ridge

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https://photographyontherun.com/content/binary/WesternSantaMonicaMountainsMorningLowCloudsSun4949b.jpg

The sun had risen, casting a warm morning light on the Santa Monica Mountains. Overnight, low clouds flowed inland through Malibu Canyon, emphasizing the peaks and covering the valleys.

Backbone Trail below Saddle Peak.
Backbone Trail below Saddle Peak.

I had just started up Topanga Lookout Ridge and was less than a mile into the Topanga Lookout Ridge Loop. Rain had muddied the ground and cleansed the sky, producing crystal clear views in every direction.

The view of the western Santa Monica Mountains extended from the top of the Tapia climb on Mesa Peak Motorway, past Castro Peak, to Boney Mountain and the highest peak in the Santa Monica range — Sandstone Peak.

In my mind, I traced the route of the Backbone Trail along the crest. My route would take me to the Backbone Trail, but this morning I would enjoy running only a few of its sixty-eight spectacular miles.

Some related posts:
Topanga Lookout Loop, Plus Saddle Peak
Looking for Snow on Topanga Lookout and Saddle Peak
Topanga Lookout Site and the San Fernando Valley

adventures, clouds, landscape, nature, nature|clouds, nature|weather, photography, photography|landscape, rocky peak, running, running|adventures, southern california, trails, trails|smmc open space, weather, weather|southern california

Chumash Rock and Clouds

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Chumash Rock and Clouds - Photography by Gary Valle'
Chumash Rock and Clouds

“Chumash Rock” is prominent rock formation seen from the Chumash Trail in the eastern Simi Valley.

As I discovered in a January 2006 adventure, it is not an easy rock formation to reach.

The title photo was taken in mid-November while doing the Chumash – Las Llajas Loop. The clouds over the Ventura County foothills and mountains from the Las Llajas Canyon – Rocky Peak Road connector were just as beautiful.

adventures, landscape, nature, nature|wildflowers, photography, photography|landscape, running, running|adventures, san gabriel mountains, southern california, trails, trails|san gabriels, weather, weather|southern california, wildfire, wildflowers, wildflowers

Three Points Loop Following the Reopening of Angeles Crest Highway

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Bracken fern turning color at Waterman Meadow is a sure sign of Autumn.
Waterman Meadow

I was beginning to wonder if I would get a chance to do the Three Points Loop around Mt. Waterman in 2023. Angeles Crest Highway had been closed from Red Box to Vincent Gap for many months, and CalTrans projected it might not open until Thanksgiving.

That’s why Friday (November 3) I was excited to hear Angeles Crest Highway had reopened between Upper Big Tujunga Rd. and Islip Saddle.

Alpenglow on the San Gabriels' Front Range peaks.
Alpenglow on the San Gabriels’ Front Range peaks.

A couple days later,  at dawn,  I pulled into the Three Points parking lot, put on some sunscreen, grabbed my pack, and set out to see what was happening on the Three Points loop around Mt. Waterman.

I’d done the loop many times and in many situations — clockwise, counterclockwise, after the Station Fire closure, after the Bobcat Fire closure, with snow at the higher elevations, in hot weather and in cold. When the trails are in good shape and the weather isn’t too hot, the 20-mile loop is an outstanding trail run. Today, it was a challenge just to complete the loop.

Gilia along the Burkhart Trail. November 2023.
Gilia along the Burkhart Trail.

In many areas of Southern California, a wet 2022-2023 rainy season and Tropical Storm Hilary’s rain produced two seasons of Spring-like growth. One of the effects of the rain was the growth of wildflowers usually seen in the Spring, including seep monkeyflower, golden yarrow, gilia, grape soda lupine, and little paintbrush. It was strange to see a bumblebee buzzing from flower to flower of a Grinnell’s penstemon at 7250′ on Mt. Waterman in November.

At lower elevation, sections of Three Points – Mt. Waterman Trail (10W04) were overgrown with mountain whitethorn — requiring several “grin and bear it” passages. Higher, long stretches of the little-used path were covered with a second season of grass. This made route-finding difficult, particularly where the trail descends to the Twin Peaks Trail junction.

Twin Peaks from the Buckhorn - Mt. Waterman Trail.
Twin Peaks from the Buckhorn – Mt. Waterman Trail.

It was an intriguing puzzle to solve, and eventually I made it to the junction of the summit trail and the trail down to Angeles Crest Highway, near Buckhorn (10W05). The trail down to Buckhorn sees much more use than the trail from Three Points and is much better defined. Besides a couple of downed trees, the run down was one of the more enjoyable parts of the loop. The trail is usually very busy, but I didn’t encounter anyone coming up the trail.

As expected, Buckhorn Campground was closed and no water was available. It was a warm day — around 75 degrees — but with the November sun low in the sky, not as warm as 75 degrees in July. If I needed more water, there were several places I could refill.

Cooper Canyon Falls, November 2023.
Cooper Canyon Falls (video)

The Burkhart Trail (below Buckhorn) was the only place I encountered a few hikers. They were returning from Cooper Canyon Falls. When I got down to the PCT and saw how much water was in the creek, I did the short side trip to the falls and took this video snapshot. It’s unusual for the falls to be flowing this time of year.

After checking out the falls, I resumed my westward journey on the PCT. Within feet of the creek crossing, an ugly tangle of fallen trees completely blocked the trail. This was just the first of several problems on the PCT between the Burkhart Trail junction and Cooper Canyon Camp. There were the usual downed trees, but there were also several sections of badly overgrown trail. These green thickets were generally adjacent to the creek, where the trail had been (or still was) wet.

Willows along the creek near Cooper Canyon Trail Camp.
Willows along the creek near Cooper Canyon Trail Camp.

Needing water, and to empty the debris from my shoes, I stopped for a few minutes at Cooper Canyon Trail Camp. Several campsites are nestled in a pleasant area along the creek. With Angeles Crest Highway open, I thought I might see someone here, but like Buckhorn Campground, it was empty.

After reaching Cloudburst Summit, the remainder of the run was more or less usual for the loop. There was some Poodle-dog bush and a small rockslide along the PCT on the way to Camp Glenwood, but neither were an issue. The run was more challenging than usual — and a bit slower — but it had been (mostly) fun and fascinating to work through it.

Here are a few photos taken along the way.

Some related posts:
– After the Bobcat and Station Fires: Three Points Loop Around Mt. Waterman (Slideshow, 3D Terrain Maps)
– Cool Weather, Old Trees, Grape Soda Lupine and a Restored Trail
– Lemon Lilies, Tree Rings and More Heat Training on the Three Points Loop
– Three Points Loop Adventure – July 2020

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.