3D Terrain View of Bobcat Fire Soil Burn Severity and Some Angeles National Forest Trails

3D terrain snapshot of Bobcat Fire Soil Burn Severity and some Angeles National Forest trails

The 3D terrain image above shows an overlay of the Bobcat Post-Fire BAER Soil Burn Severity Map from the Burned Area Emergency Response (BAER) Imagery Support website. The burn severity classes are high (red), moderate (yellow), low (light green), unburned/very low (dark green), and no data (black).

Here is an interactive, 3D terrain version of the Bobcat Fire Soil Burn Severity Map. The map can be zoomed, tilted, rotated, and panned. To change the view, use the control on the upper right side of the screen.

GPS tracks (yellow) of the Pacific Crest Trail and some other trails and routes in the area have been added. An unofficial version of the Bobcat Fire closure boundary (purple) has also been added. The closure boundary data is from CalTopo and appears to be based on Forest Order 05-01-21-03 (PDF). Locations of GPS tracks, placenames, soil burn severity, and the closure boundary are all approximate and subject to errors.

Below are some starting points in the 3D terrain viewer:

Twin Peaks – Mt. Waterman – Buckhorn

Shortcut – West Fork – Mt. Wilson – Red Box

Mt. Wilson – Chantry Flat – Monrovia Peak

Little Jimmy – Islip Saddle – South Fork – Burkhart Saddle – Devils Punchbowl

For official information regarding Bobcat Fire closures, contact Angeles National Forest.

Three Points – Mt. Hillyer Loop

Trail runner on the Mt. Hillyer Trail in the San Gabriel Mountains
Mt. Hillyer Trail

Snow — if there has been snow — disappears quickly from the middle elevations of the San Gabriels this time of year. Activity increases with the rising snowline, as visitors eye their favorite trails and peaks.

I was driving up Hwy 2 to Three Points to do a run with Skye. In a normal year we would be doing the Three Points – Mt. Waterman Loop, but for the second time in 11 years, the trails in the Mt. Waterman area had been closed by a wildfire. In 2009, the Station Fire burned 160,557 acres in the San Gabriel Mountains, and just last year, the Bobcat Fire burned 115,796 acres. In several places, including Mt. Waterman, the Bobcat Fire burned terrain that had been burned in the Station Fire.

Coulter pine cone, heavy with resin
Coulter pine cone, heavy with resin

With entry prohibited in most of the Bobcat Fire burn area, the Three Points Loop around Mt. Waterman was out for now. Instead, we decided to do a segment of the traditional AC100 course from Three Points to Chilao, and then return to Three Points using the Silver Moccasin Trail.

Here’s an overview of both the Three Points – Mt. Hillyer Loop (yellow) and the Three Points – Mt. Waterman Loop (red). An overlay of the Bobcat Fire BAER Soil Burn Severity has ben added to the Google Earth image. The burn severity classes are high (red), moderate (yellow), low (light green), unburned/very low (dark green), and no data (black). Trail and placemark locations are approximate.

Trail runner on the PCT near Sulphur Springs Road
PCT near Sulphur Springs Road

On today’s run we followed the Pacific Crest Trail northbound from Three Points toward Sulphur Springs Trail Camp. Just before the camp, the PCT splits. We followed the left fork (uphill), and then around to the South Fork Little Rock Creek drainage and Sulphur Springs Road. The PCT parallels the road for about a half-mile, then crosses the road. At this point we left the PCT behind and continued up the road (5N04) to Alder Saddle and forest road 3N17. We continued left (south) on 3N17, bearing left on Santa Clara Divide Road at a fork, and going uphill to Rosenita Saddle.

At Rosenita Saddle we turned right (southwest) onto the Mt. Hillyer Trail. The trail starts at the back of a small parking area. The trail climbs to the high point of Mt. Hillyer, and then descends through large granite boulders in the Horse Flats bouldering area. (If you are a rock climber, bring your shoes!) The Mt. Hillyer Trail intersects the Silver Moccasin Trail near the Horse Flats Campground.

To add a little mileage and elevation gain, we turned right (south) on the Silver Moccasin Trail and continued to Chilao Campground. After saying hi to Chilao, we turned around and followed the Silver Moccasin Trail north, back to Three Points.

The trail run was a little over 13 miles, with a cumulative elevation gain of about 2100′. The high point was about 6200′, on Mt. Hillyer. The route-finding on the loop can be a bit tricky the first time around.

Back to the Stone Canyon Trail – Spring 2021 Update

View west from Mt. Lukens, across the Crescenta and San Fernando Valleys.
View west from Mt. Lukens, across the Crescenta and San Fernando Valleys.

It was a chilly 45 degrees in the canyon, and I had already resigned myself to having to wade across Big Tujunga Creek. But I didn’t even get my shoes wet. The water level was low enough that the large rocks placed across the creek were high and dry.

Low water made it easy to cross Big Tujunga Creek. April 4, 2021.
Low water made it easy to cross Big Tujunga Creek.

It was a good start to what was to be an excellent run and hike. As I gained elevation, it was evident there had been recent work on the trail. Trimmings from the brush along the trail were still green, and in several spots the tread had been freshly manicured. The higher I climbed, the more work had been done. In a couple of places, substantial washouts had been repaired.

Last year, the trailwork ended abruptly about halfway up the trail. Not so this year. An impressive amount of work had been done to clear the trail of a tortuous mix of dead scrub oaks and thorny brush. Without having to crawl over, around, and through those snarls, my roundtrip time to the summit and back was a full hour faster than last year. Many thanks to whoever worked on the trail!

Stone Canyon Trail on Mt. Lukens
Stone Canyon Trail

Although rainfall has been below normal this rain season, there were still some wildflowers blooming along the trail. Among them were bush poppy, chaparral currant, and hoary-leaved Ceanothus.

Here’s an interactive, 3D terrain view that shows a GPS track of the route up and down the Stone Canyon Trail on Mt. Lukens. The view can be zoomed, tilted, rotated, and panned. Placemark and track locations are approximate and subject to errors.

Some related posts: Back to the Stone Canyon Trail, Mt. Lukens, Then and Now

Two Sides of Strawberry Peak – Spring 2021 Update

Josephine Peak and Mt. Lukens from the northwest ridge of Strawberry Peak
Josephine Peak and Mt. Lukens from the northwest ridge of Strawberry Peak

The photo above — of Josephine Peak — is the reciprocal view of this photo of Strawberry Peak. The photo of Strawberry from Josephine shows the dogleg approach along the ridge that connects Josephine Saddle to the northwest ridge of Strawberry Peak.

Strawberry has always been popular, but because of the Pandemic and fire closures, there has been an increase in the number of people doing the peak. Not having done the peak for a couple of years, I was curious to see if the condition of the use trail on Strawberry’s northwest ridge had changed.

Google Earth image of Strawberry Peak from Josephine Peak, with GPS track of route from Josephine Saddle to summit
Google Earth image of Strawberry Peak from Josephine Peak, with GPS track

Given my early start, I was surprised to find the small parking area for the Colby Canyon Trail nearly full. I don’t know where all those people went, because I passed only one small group on the way to Josephine Saddle, and I didn’t see anyone between Josephine Saddle and the summit. There was a group on the summit, but they had hiked the trail from Red Box.

The last time I did the loop over Strawberry was April 2019. At that time sections of the use trail along the ridge leading to the upper northwest ridge of Strawberry were badly overgrown. This time around, increased usage has generally improved the path along the approach ridge. Plus, there has been some work done on the section of trail that was the most overgrown. However, to benefit, you have to stay on the trail. It wanders all over the place, and if you get impatient, you’ll be fighting your way through thick, thorny brush.

Upper northwest ridge of Strawberry Peak.
Upper northwest ridge of Strawberry Peak.

There was a little patchy snow on the steep, deeply shaded, north face of the peak. The snow was generally left of the normal rock climbing route up the northwest ridge. The patch or two on the route were easily avoided. Early or late season, this more technical section can be like a deep freezer. Today, it was cool, but comfortable. As mentioned in other posts, the steep, upper part of Strawberry’s northwest ridge requires good route-finding and some rock climbing skill. It is important to stay on route.

The steep section of the ridge ends a little below the top of Strawberry. I paused there for a moment to enjoy the view… Was that music I heard coming from the summit?

It was. The group that was on the summit was kind of encamped there. It looked like they might be a while, so I just said hi, and started down the east side of the peak.

I expected a lot of people to be on the trail up Strawberry from Red Box. It was busy, but seemed about normal for a Sunday in Spring with idyllic weather. There were fewer large groups coming up from Red Box than in April 2019.

Upper West Fork near Red Box following the Bobcat Fire
Upper West Fork near Red Box from the Strawberry Trail. Mt. Wilson is in the distance.

At Red Box I stopped to take a look at how the 2020 Bobcat Fire had impacted the upper part of the West Fork drainage. There was a substantial fire scar on the left side of the canyon, but the right side of the canyon looked better than I expected. An upcoming post will include an interactive 3D visualization of the Soil Burn Severity in the Bobcat Fire area, along with the GPS tracks of some popular trails.

For the first time in a long time, I didn’t encounter any mountain bikers on the Gabrielino Trail between Red Box and Switzer’s. There were plenty of tire tracks, so I must have been between groups. I did encounter two misplaced hikers. They stopped me and asked how much farther it was to the falls. Unfortunately, they had gone the wrong direction on the trail from Switzer’s, and were several miles from Switzer Falls.

At Switzer’s, I chugged up the access road to Hwy 2, and then ran on the verge next to road back to the Colby Trailhead. Somehow, more cars were packed into the small parking area.

Starting and ending at the Colby Trailhead, the loop is a little over 12 miles with about 3200′ of elevation gain/loss. Starting at Clear Creek adds about a mile to the loop. Some prefer to do it as keyhole loop, returning to Josephine Saddle from Lawlor Saddle using the Strawberry and Colby Trails. I haven’t done it that way, but the mileage looks to be only slightly less than the full loop through Red Box.

Some related posts: Strawberry Peak

Hidden Pond – Old Boney Loop, Pt. Mugu State Park

Boney Mountain From the Hidden Pond Trail, Pt. Mugu State Park
Morning on the Hidden Pond Trail, Boney Mountain in the distance.

The Hidden Pond – Old Boney Loop is a variation of the XTERRA Boney Mountain Trail Run 21K course. The route is about a half-mile longer and has a couple hundred feet more of elevation gain, but all the key trails are the same. It starts/ends at the Wendy Drive & Potrero Road Trailhead.

Here is an interactive 3D terrain view of the Hidden Pond – Old Boney Loop and a few photos taken along the way.

Related post: Boney Mountain Half Marathon

Running Between Raindrops: Chumash Trailhead to Rocky Peak

Rain in the San Fernando Valley from Rocky Peak. March 12, 2021.
Rain in the San Fernando Valley from Rocky Peak

Was that thunder? I warily eyed the dark clouds over the mountains and pondered the situation.

I was about halfway to the top of the Chumash Trail and was planning to run along the crest to Rocky Peak. The run had started in short sleeves and sunshine, but it was pretty obvious that wasn’t going to last.

Chumash Trail about a mile from the trailhead
Chumash Trail about a mile from the trailhead

A cold upper-level low had brought badly needed rain to the area for the past two days. The low was moving off to the east, but there was still a chance of afternoon showers and maybe even a thunderstorm.

It was the “thunderstorm” part that I needed to pay attention to. I had enough gear to deal with a downpour and cooling temps, but electrical storms are no fun at all.

I decided to continue to the top of the Chumash Trail and reassess. As I worked up the trail, I pictured the counterclockwise circulation around the low, and how convective cells develop over the mountains and then dissipate as they drift south. The concern was that the cells don’t always dissipate.

Rocky Peak Road near Rocky Peak
Rocky Peak Road near Rocky Peak

It looked like things weren’t getting any better at the top of the Chumash Trail, but it wasn’t worse either. I hadn’t heard any thunder for a while, and most of the activity seemed to be a few miles to the west and east. Having been starved of stormy weather for much of the rain season, I turned right on Rocky Peak Road and headed south toward Rocky Peak.

The run from the Chumash Trailhead to Rocky Peak is a challenging mix of technical single-track trail and hilly fire road. There are wide-ranging views of Simi Valley & Simi Hills, the San Fernando Valley, Santa Monica Mountains, Ventura County mountains, and San Gabriel Mountains. On a clear day, the view can extend to the Channel Islands, Saddleback, and San Jacinto Peak.

NOAA radar mosaic Rocky Peak March 12, 2021.
NOAA radar mosaic at the time I was on Rocky Peak

The actual turnaround point for a run to “Rocky Peak” varies. Some like to turnaround at the high point of Rocky Peak Road that is near Rocky Peak. Most of the time, I turnaround at a viewpoint that is at the end of a spur trail that branches off from the high point of Rocky Peak Road. From time to time, it’s fun to hike over to Rocky Peak and scramble to the top. That’s a bit more involved and requires some route-finding.

I felt the first raindrops as I reached the high point on Rocky Peak Road and turned onto the spur trail that leads to the overlook. There was some increased development to the east, but it looked like there would be enough time to get over to Rocky Peak, take a couple of pics, and then head back.

Oat Mountain, shrouded by rain
Oat Mountain, shrouded by rain

I felt a little exposed on top of Rocky Peak. I hadn’t heard any thunder for the past hour, but a cell to the east was spouting heavy rain over the San Fernando Valley, which meant there was probably enough development to produce lightning. I took the title photo and a couple of others and hurriedly descended from the peak.

Back on Rock Peak Road, the sprinkles increased, and the showers became more steady as I ran north toward the Chumash Trail. Under the dark clouds, a raven perched on a large pinnacle cawed incessantly, either enjoying the rain or complaining about it. In the distance, a siren wailed down in the valley. It was cold, and I was very glad to have an extra shirt, sleeves, gloves and a light rain shell.

Mix of sun and rain on the Chumash Trail
Mix of sun and rain on the Chumash Trail.

As I began the descent of the Chumash Trail, the sun briefly broke through the clouds, reflecting brightly on the wet sandstone rocks. I breathed deeply, relishing the smell of the cleansed air and wet chaparral, and continued down the trail.

Here’s an interactive 3D terrain view of my GPS track. Over the run, the temperature sensor on my pack recorded a drop of about 30 degrees — from around 70°F at the start of the run to about 40°F when the showers began! Here’s what a NOAA Radar Mosaic looked like at the start of the run and when I was on Rocky Peak.

Related: Chumash Trail, Rocky Peak, Thunderstorm

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