A place to ponder things near and far, and to explore the unimagined.
From along the Rim Trail at Mt. Wilson Observatory.
Related post: GSU Mt. Wilson CHARA Telescope Array
Category Archives: san gabriel mountains
A Morning Thunderstorm, Debris-Covered Trail, Fast-Paced Fire Road, and Tough Climb on the ANFTR 25K Course!
Update October 2, 2024. I ran the ANFTR 25K Course on Sunday and the cuttings on the Mt. Disappointment/Bill Riley Trail had been removed. The trail was clear and back to normal!
As I drove east on the 210 Freeway, a long bolt of lightning erupted from high in the clouds and pierced the valley below. The thunderstorm near Mt. Lukens looked spectacular. It was backlit by the rising sun, and intermittent lightning flashed against its dark gray clouds.
Theoretically, I was headed to Mt. Wilson. It was July. It was hot. It was time to get on the ANFTR/Mt. Disappointment race course! But was that going to be a good idea? A slight chance of a thunderstorm was forecast for the afternoon and already there was an active storm right in front of me.
The Angeles National Forest Trail Races (aka Mt. Disappointment) is a popular event usually run in the heat of Summer after the Fourth of July. Because of the pandemic, Bobcat Fire, and trail and road closures, the race has been on hiatus since 2020, but a new race date appears to be in the works!
Another ragged bolt flashed horizontally across the clouds. The cell looked isolated and appeared to be moving to the north. I decided to take a chance and bet that the morning storm was a quirk. Still, it suggested a real possibility of a thunderstorm later in the day.
About the time I passed Trail Canyon on Big Tujunga Canyon Road, it started to rain, and the rain continued much of the way to Red Box. The activity was actually more extensive than the cell near Mt. Lukens — a band of thunderstorms had swept through the San Gabriel Mountains between Mt. Lukens and Mt. Wilson.
Mt. Wilson Road was still wet as I started down the first leg of the ANFTR/Mt. Disappointment 60K/50K/25K courses. If you have to run on pavement, running downhill on super-scenic Mt. Wilson Road after a thunderstorm is about as good as it gets! The cleansed atmosphere and vivid smells in the wake of the storm were remarkable — as were the views down into the canyon of the West Fork San Gabriel River.
This morning, I was doing the 25K course, but all the distances follow the same route to Red Box. They start by running down Mt. Wilson Road to Eaton Saddle and then following Mt. Lowe Fire Road through Mueller Tunnel to Markham Saddle and the San Gabriel Peak Trail. The San Gabriel Peak Trail leads up to the Mt. Disappointment service road and, surprisingly, the high point of the 60K/50K/25K courses. This stretch of service road is higher than the start/finish on Mt. Wilson!
Even if you have run a trail many, many times — and think you’re familiar with it — sooner or later, you’re going to encounter something you didn’t expect. From the Mt. Disappointment service road, the ANFTR/Mt. Disappointment courses turn onto the Mt. Disappointment/Bill Riley Trail. After the first couple of switchbacks, there were an increasing number of cut limbs on the trail. Initially, the cuttings were not much of an issue, but became worse as I continued down the trail.
Partway down, I encountered two very upset hikers who had lost the trail. They had just decided to leave the trail and hike on the service road. They cautioned me that the section where they had problems was just below. They weren’t kidding. I’ve done this trail innumerable times and at one point also had difficulty locating it. I had to wade through an expanse of cuttings to stay on the trail.
I’ve been on trails impacted by forest thinning projects before. The crews that worked on those projects at least made an effort to keep the trails clear. No such attempt was made here — the cuttings were left where they fell, and if that was on the trail, too bad!
It was a relief to get off the Mt. Disappointment/Bill Riley Trail and down to Mt. Wilson Road and Red Box.
Update October 2, 2024. I ran the ANFTR 25K Course on Sunday and the cuttings on the Mt. Disappointment/Bill Riley Trail had been removed. The trail was clear and back to normal!
Unlike last year, Rincon-Red Box Road was in great shape. It was so well-graded that a Prius might have been able to drive down to West Fork. Much of the 5.5 miles down to West Fork are in full sun, so the temperature has a substantial impact. In the 2019 ANFTR/Mt. Disappointment 50K, the thermometer on my pack read about 80 degrees. In the 2017 50K, the temp on the same stretch was about 100 degrees. Today, it was around 90.
Whatever the temperature, there are excellent views down the West Fork and of the Mt. Wilson area. The towers on Mt. Wilson always look tantalizingly close, and the climb up Strayns Canyon doesn’t look that bad. (Ha!) Like last year, there were four or five creek-like crossings of the West Fork San Gabriel River.
The area around the spring at West Fork was a bit overgrown, but a trampled path through the grass below the cistern led to the outflow pipe. I refilled my hydration pack and drank my fill before setting off on the Gabrielino Trail. With the temperature in the sun at West Fork around 95, I should have spent more time at the spring cooling down.
It’s only about 1.6 miles from the spring to where the Kenyon Devore Trail forks left off the Gabrielino Trail, but it often seems longer. Probably because I’m anticipating the turnoff and don’t want to miss it. This morning, it was also the hottest stretch on the course, with the temperature in the sun topping out at around 100 degrees.
Based on some recent runs, I expected the Poodle-dog bush on this stretch to be a problem, but most of the Poodle-dog bush had been trimmed or was wilting. It wasn’t the only thing that was wilting. Shortly after turning off the Gabrielino Trail and onto the Kenyon Devore Trail, the combination of heat and humidity hit me like the proverbial brick. I had to back off the pace.
Not long after that, I was startled by a runner coming up behind me. It turned out to be another runner from the West San Fernando Valley! Charlie was training for UTMB and putting in a tough 27-mile, 8700′ gain day. We had a great conversation about races, running, and adventures in the mountains. Despite the heat, he was moving well and soon disappeared up the trail.
I continued chugging up the trail, noting familiar features as I climbed higher and higher. Eventually, the white dome of the Hooker 100 inch Telescope came into view, and I knew I just about done!
As I worked up the final half-mile of trail, I could see only a couple of isolated build-ups of cumulus clouds. One was over the desert and the other was to the east near San Gorgonio. The sky over Mt. Wilson was mostly clear.
Here’s a high-resolution, interactive, 3D-terrain view of the Mt. Wilson – Red Box – West Fork – Kenyon Devore Loop. The loop is a slightly shorter version of the ANFTR/Mt. Disappointment 25K.
Some related posts:
– After the Bobcat Fire: Running the ANFTR 25K Course
– An ANFTR/Mt. Disappointment 2020 Adventure
Out and Back Trail Run from Islip Saddle to Mt. Baden-Powell – July 2024 Update
Update July 22, 2024. The Poodle-dog bush along the PCT near Islip Saddle has been cleared by Gary Hilliard and the AC 100 Trail Team!
When I reached the summit of Mt. Baden-Powell (9,399′), it was empty, save an opportunistic raven who was evaluating the chances that the Larabar I was eating might fall to the ground.
On top, the heat of the strong Summer sun was offset by a cooling breeze. There was still a few thin ribbons of snow in the chutes on Mt. Baldy. With the excellent visibility, San Jacinto Peak could be seen in the notch between Mt. Baldy and Dawson Peak, and San Gorgonio Mountain was sharply visible to the left of Pine Mountain.
Other than a few people at Little Jimmy hike-in camp, I saw no one on the way up from Islip Saddle. A quarter-mile from the trailhead, there was an astonishing display of Poodle-dog bush along the PCT. In 2011, when a large part of Angeles National Forest reopened following the Station Fire, I developed an extensive rash after bushwhacking through Poodle-dog on overgrown trails. After that experience I’ve been more careful around the plant, and haven’t had a bad case since.
Trees were across the trail in a few places. Most were fairly easy to bypass, but a couple were “inconvenient,” such as this big log, about 0.75 mile east of Windy Gap.
As I worked up the switchbacks above the log, to the southwest I could see the observatory and towers on Mt. Wilson. As a result of the damage to Chantry Flat in the Bobcat Fire, Mt. Wilson was on the Angeles Crest 100 Mile course last year, and will be again this year. As the raven flies, Mt. Wilson was only about 16 miles away, but for someone running the AC100, the miles along its challenging course would total well over 50!
For several years I’ve been following the regrowth of conifers in four places along the PCT that were burned in the 2002 Curve Fire. What has been underscored in my informal study is a) trees take a long time to regrow, and b) frequent fires in an area are particularly devastating. Stand #1 (1.5 miles east of Islip Saddle on the PCT) was recovering nicely from the 2002 Curve Fire when it was burned in the 2020 Bobcat Fire. This comparison shows the result. The other three stands continue to recover well, with south-facing Stand #4, west of Throop Peak, growing particularly vigorously.
Ascending the final 400′ of gain on Baden-Powell’s west ridge, I was surprised to see a couple of small patches of snow remained on the north side of the ridge. The snowpack here was nowhere near as big as in 2023, but it was still pleasing to see that a little of the white stuff survived until July.
No out and back to Baden-Powell is complete without a quick stop at Little Jimmy Spring. Today, the water from spring was so cold it was painful to hold my hand in the water flowing from the pipe!
Some related posts:
– It’s Mid-July And There Is Still Snow in Los Angeles County!
– A Cool and Breezy Out and Back Trail Run from Islip Saddle to Mt. Baden-Powell
– Contact Dermatitis from Eriodictyon parryi – Poodle-dog Bush
– Regrowth of Trees Along the PCT Following the 2002 Curve Fire
The Ups and Downs of the Angeles Crest 100 Mile Run
First published on June 30, 2015. Updated July 8, 2024.
August 3rd runners from near and far gather in a small parking lot in Wrightwood, California, to start the Angeles Crest 100 Mile Endurance Run (AC100). Begun in 1986, the AC100 is one of the original five 100-mile U.S. endurance races. It has endured fires, floods, the Covid-19 pandemic, and changing trail restrictions.
There’s a tradition of running grueling endurance races in the San Gabriel Mountains. The Big Pines Trail Marathon was one of the first organized mountain ultramarathons in the U.S. First run in August 1934, its course used some of the same trails that AC100 runners enjoy today.
The AC100 is not like a road marathon. It is an entirely different kind of running event and an entirely different kind of running experience. The 2024 L.A. Marathon had about 25,000 participants. About 1/100th of that number — around 250 runners — are expected to start the AC100.
For many, one of the primary reasons for running the AC100 is to be fully immersed in the beauty and majesty of the San Gabriel Mountains. Runners start at 5:00 a.m., ascend the Acorn Trail, and as the sun rises, find themselves above 8000′, reveling in the spectacular views from Blue Ridge.
Even at this early stage of the race, the field is already becoming dispersed. By the time runners reach the first checkpoint, nine miles into the run, there is an hour spread between the first and last runner. Unlike a road marathon, much of the time a runner in the AC100 will be alone.
This year’s course returns to a point-to-point format, ending in Altadena. Because of damage to the Chantry Flat area by the Bobcat Fire, runners will bypass Chantry and ascend Mt. Wilson using the grueling Kenyon-Devore Trail, returning to the traditional course at the Mt. Wilson Toll Road above Idlehour.
As a result of this frequent storms the past two Winters, many trails have been damaged or blocked by trees and debris. Ultrarunners not only spend many hours enjoying the trails in our local mountains but also do hours of trailwork that helps keep trails open and usable for everyone.
This elevation profile for the 2024 AC100 course was created in SportTracks from a GPX file provided by the event organizers. The elevation profile was corrected using 3DEP 1-meter Lidar-based DEMs. A conservative elevation data smoothing setting was used, resulting in an estimated cumulative gain of about 17,890′ and loss of 22,550′. The actual gain and loss are probably a bit more. Placemark locations, mileages, and elevation gains and losses are approximate. The elevation profile can be downloaded from the Course Overview page on the AC100 website.
In addition, here is an interactive, high resolution, 3D-terrain map of the 2024 Angeles Crest 100 Mile Race. It is based on the course GPX file downloaded from the AC100 website. The view is initially zoomed in on the climb up Mt. Baden-Powell. 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.
Here is another high resolution view of the Shortcut Saddle – Red Box – Mt. Wilson section of the AC100 course.
See the AC100 website for official information and details.
Hot Weather on the Three Points Loop
When Angeles Crest Highway opened between Upper Big Tujunga Road and Islip Saddle last Fall, I jumped on the chance to do the Three Points loop around Mt. Waterman. When in good condition and with good weather, the 20+ mile loop is one of my favorites. That day, the trail conditions could have been better.
Turn the clock forward to this Spring, and once again, road closures were limiting access to Three Points. Angeles Crest Highway was still closed between Red Box and Upper Big Tujunga Canyon Road, and the alternate route — Upper Big Tujunga Canyon Road — was “Only Open To Contractors, Residents, & Emergency Vehicles.” Recently, the Los Angeles County Road Closures website updated the status of Upper Big Tujunga Canyon Road to “Access Limited, Expect Delays.”
Excited to get back on the Three Points Loop, on Sunday I found myself motoring up Upper Big Tujunga Canyon Road, headed for the Three Points Trailhead. There were no problems or delays getting to Angeles Crest Highway, and I pulled into the Three Points parking lot at about 6:30 a.m.
Having done the Three Points Loop many times and in a variety of conditions, I didn’t think much about the difficulties on the loop in November. Like others that relish the outdoors, my brain is very good at shaping memories so as to emphasize the positive and downplay — or outright ignore — the negative.
I’d checked the weather — a Heat Advisory had been issued for the San Gabriel Mountains, and there was a chance of thunderstorms from a dissipating tropical storm. A key part of the loop, Cooper Canyon, has a rep for being hot. Much of the PCT on that stretch is on sparsely-forested, south-facing slopes. My thought was that maybe there would be enough clouds to take the edge off the heat.
Nope! The in the sun temperature in Cooper Canyon was around 100 degrees. The good news was Buckhorn Campground was open and my favorite water faucet had plenty of water. Plus, the creek in Cooper Canyon was running, so I could cool off and supplement my water.
The trail conditions were virtually identical to those last November, but with heat added. The Three Points — Mt. Waterman Trail was a bit overgrown, and there were many downed trees across the trail. In November there was a particularly inconvenient tree blocking the PCT on the north side of the creek, just west of the Burkhart Trail junction, and it was still there today.
There seemed to be more Poodle-dog bush than back in November, or maybe it was easier to spot because it was blooming. The big winner among the multitude of wildflowers was beardtongue penstemon, which was blooming profusely on some of the slopes burned in the Bobcat Fire. Other wildflowers I saw along the trail included bigleaf lupine, little paintbrush, scarlet monkeyflower, narrow-leaved lotus, golden yarrow, gilia, wallflower, and red columbine.
Because of the trail conditions, heat, and altitude, the Three Points Loop today was more difficult than the 50K I ran two weeks ago!
This high resolution, interactive, 3-D terrain view shows the Three Points Loop (yellow) along with a couple of options (red). The side trip to the summit of Mt. Waterman adds about 1.75 miles to the run.
Some related posts:
– Three Points Loop Following the Reopening of Angeles Crest Highway
– Cool Weather, Old Trees, Grape Soda Lupine and a Restored Trail
– Three Points Loop Adventure – July 2020
Twenty-Plus Years Running the Strawberry Peak Circuit
The repeated cries of a falcon called from high on the north face of Strawberry Peak. Along the sandy trail, lupine, paintbrush, penstemon and yarrow bloomed in a profusion of blues, reds, and yellows. Tracks from running shoes, bikes, boots, and a black bear proclaimed the trail to be truly multi-use.
I sighed and took it all in. I’d been doing this classic 16-mile route for more than 20 years. A favorite of mountain bikers and runners alike, the loop can be broken down into the following segments.
Josephine Fire Road Climb
From the Clear Creek Trailhead, Josephine Fire Road climbs about 1250′ over 2.5 miles to a divide connecting Josephine and Strawberry Peaks. At the junction, the route turns right (east) onto a trail along the divide that goes to Josephine Saddle. A left (west) turn goes to Josephine Peak.
On the way up from Clear Creek, the switchbacks on the fire road look intimidating, but the climb goes relatively quickly. There are good views of Strawberry Peak along the way. In the Spring and early Summer, the bright yellow flowers of invasive Spanish broom line the road.
An out-and-back ascent of Josephine Peak from the junction adds about three miles to the loop.
There is a Remote Automated Weather Station (RAWS) at Clear Creek Station. The “2.0m Temperature” is more or less the temperature in the shade and the “Fuel Temperature” is a good indicator of the temperature in the sun.
Colby Canyon Trail
The route joins the Colby Canyon Trail at Josephine Saddle. A large cistern is found here. Just past the saddle, the climber’s trail to Strawberry Peak branches off the main trail and goes up the ridge. The Colby Canyon Trail contours along the left (northwest) side of the ridge and traverses a steep slide area. After that, it works around the shoulder of Strawberry, then turns east and descends, winding in and out of the small canyons on the northwest and north slopes of Strawberry.
In the Spring and Summer colorful patches of lupine, paintbrush, and other wildflowers are found on this stretch of trail. Long-limbed big cone Douglas-firs grow on these cooler north-facing slopes.
The bare trunks of trees burned in the 2009 Station Fire are mixed in with surviving trees. Today, I was surprised to find another reminder of the Station Fire — poodle-dog bush. The plant can cause a poison oak-like rash and was much more common following the 2009 Station Fire.
On this stretch, the large rock face on the north side of Strawberry Peak comes into view, and shortly after, the trail passes a huge boulder. The flattish area that follows is Strawberry Protreo. The “meadow” reminds me of lower elevation areas of the Southern and East Side Sierra.
Several climbing routes have been done on Strawberry’s formidable north face. The consensus seems to be that the rock quality is poor and the risk high.
Beyond Strawberry Protreo, the trail descends along the margin of a moraine-like landslide. Then it turns south, reaching a flat, sandy area just before the Colby Canyon Trail – Strawberry Trail junction. I’ve often seen bear tracks on this stretch of trail. The loop takes the right fork onto the Strawberry Trail and climbs to Lawlor Saddle.
Climb to Lawlor Saddle
The Strawberry Trail gains about 750′ over two miles on its way to Lawlor Saddle. As the post “Trail Games” mentions, this stretch will tell you a lot about how your day is going. It dips in and out of side canyons, passing Strawberry Spring along the way. Today, Strawberry Spring was running, but the spring was dry during our recent drought. It is generally not a dependable water source.
Lawlor Saddle to Red Box
The 2.5 miles to Red Box are enjoyable single-track trail. Most of it is flat or downhill. On the weekend, numerous hikers are on the trail, heading up to climb Strawberry Peak. It is by far the busiest trail on the loop.
There’s a water faucet at Red Box at the Haramokngna American Indian Cultural Center which generally (but not always) has water.
Gabrielino Trail to Switzer’s
The 4.4 miles down to Switzer’s include some fast-paced stretches and some of the most technical sections of the loop. It is popular with mountain bikers and V-ed and rutted in places. At one point, the trail drops down to the stream (if it’s running) and crosses the creek twice.
Among the many wildflowers found along this trail is crimson-spotted rock rose.
As the trail nears Switzer’s, derelict nature signs are seen along the trail, which the Forest Service apparently can’t afford to repair or remove.
Nature’s Canteen Trail to Clear Creek
The Nature’s Canteen Trail is roughly half a mile long and connects Switzer’s to Clear Creek. It starts a third of a mile up the steep access road between Switzer’s and Angeles Crest Highway. The trail is sometimes overgrown.
Strawberry Peak Variation
There is a more adventurous variation of the Strawberry Peak Circuit that goes over the top of Strawberry Peak instead of around it. This variation requires good route-finding and rock-climbing skills.
Some related posts:
– Showers on the Strawberry Peak Circuit
– Strawberry Peak Summit Loop – Spring 2023 Update
– Strawberry Peak Circuit