Mount Wilson Trailhead
A strenuous 17-mile round trip hike with over 5,000 ft elevation gain, offering stunning L.A. basin views and waterfalls.
Highlights
Must-see attractions
Social
From TikTok & Reddit
Best Time
Beat the heat and bugs
Mount Wilson Trailhead
Best Time
Beat the heat and bugs
Highlights
Must-see attractions
A strenuous 17-mile round trip hike with over 5,000 ft elevation gain, offering stunning L.A. basin views and waterfalls.
"Beautiful views, and plenty of plants and animals to check out."
Check Trail Status First
Always verify if the Mt. Wilson Trail is open before you go, as it can close due to fires or maintenance.
Bug Protection is Key
Black biting flies can be intense. Wear long sleeves, a hat, and consider a bug net for comfort.
Highlights
Discover the most iconic attractions and experiences
Summit Views
Mount Wilson Summit
Panoramic vistas of Downtown L.A. and surrounding valleys await those who conquer the challenging ascent.
First Waterfalls
Along the Mt. Wilson Trail
A rewarding stop on the trail, offering a refreshing glimpse of flowing water amidst the wilderness.
Observatory
Mount Wilson Summit
Home to historic astronomical instruments, the observatory is a fascinating destination at the trail's end.
Plans like a pro.
Thinks like you
Planning Your Visit
Trail Status & Preparation
Bug Alert & Hydration
Best Times
Insider Tips
from TikTok, Instagram & Reddit
Check Trail Status First
Always verify if the Mt. Wilson Trail is open before you go, as it can close due to fires or maintenance.
Bug Protection is Key
Black biting flies can be intense. Wear long sleeves, a hat, and consider a bug net for comfort.
Hydration is Crucial
Carry ample water, especially for the long, strenuous climb. Don't underestimate the trail's demands.
Dog-Friendly (with caution)
While dogs can hike parts of the trail, the full 17-mile trek might be too much. Ensure your dog is fit and trail-trained.
Tips
from all over the internet
Check Trail Status First
Always verify if the Mt. Wilson Trail is open before you go, as it can close due to fires or maintenance.
Bug Protection is Key
Black biting flies can be intense. Wear long sleeves, a hat, and consider a bug net for comfort.
Hydration is Crucial
Carry ample water, especially for the long, strenuous climb. Don't underestimate the trail's demands.
Dog-Friendly (with caution)
While dogs can hike parts of the trail, the full 17-mile trek might be too much. Ensure your dog is fit and trail-trained.
Sturdy Footwear Needed
This is a challenging hike. Wear appropriate hiking boots for stability and comfort on the varied terrain.
What Travellers Say
Reviews Summary
While currently closed due to fire, the Mount Wilson Trail is a beloved, albeit challenging, hike offering breathtaking views. Visitors praise its rewarding summit vistas and the scenic beauty of its waterfalls. However, be prepared for intense black biting flies and the strenuous nature of the long ascent.
"The Mt. Wilson trail is closed for the foreseeable future due to the Eaton fire. It is not safe to enter. Thanks to all the volunteers diligently working to fix this historic trail!
When the trail is open again: you can climb all the way to the summit of Mt Wilson, about 17 miles round trip, over 5,000 of vertical climbing. I don’t recommend taking a dog all the way to the top, but there are other worthy stops along the way if your dog is in good condition and is trained in navigating single track trails."
Dog People Pasadena
"I like the Mount Wilson hiking trail. I have come here a couple of times. I actually found this hiking trail on google Maps 3D. I was searching for a high peak mountain to hike up on google Maps 3D years ago. When I was younger and ignorant, I went here with just a bottled water, thinking I could get to the top in like 1 hour 😅. I thought it was a piece of cake. And I did hike for more than 2 hours or more, and I didn't find the end to the hike. I did not feel tired, but I was getting hungry. And I found some nice hikers who gave me some snacks to eat. So I went back down. Because I was crazy to come here with just a bottled water 😅.
I hope it gets open soon.
Now I noticed it's still closed as of July 5, 2025."
AUTO TUB3
"Beautiful views. We started at the top of the 7ish + mile trail from the entrance of the observatory down to the park and other end of the trail head. Pretty easy going down obviously but challenging going up. Or I assume it is. :). We turned around about a quarter of the way down. Just that short part back up had us both huffing but if you're in shape you can do it and will be rewarded with wonderful views of Downtown L.A. and several valleys."
KT Webb
What People Like
What People Dislike
Frequently Asked Questions
🚇 🗺️ Getting There
The Mount Wilson Trailhead is typically accessed from Sierra Madre, California. From the trailhead, the hike ascends Mount Wilson.
Parking availability can vary, especially on weekends. Arrive early to secure a spot.
Public transport options to the immediate trailhead are limited. Driving is the most common method of access.
The closest major city is Los Angeles, with the trailhead being a popular escape for Angelenos seeking mountain views.
The trail's accessibility is subject to weather conditions and closures, such as those due to fires. Always check current status.
🎫 🎫 Tickets & Entry
Typically, no permit is required for day hiking on the Mount Wilson Trail, but always verify with the Angeles National Forest for any current regulations.
The trailhead itself is generally accessible during daylight hours. However, the trail can be closed for safety reasons.
There is usually no entrance fee for the Mount Wilson Trailhead itself, but parking fees may apply in certain areas or if you visit the observatory.
The trail is currently closed due to the Eaton fire. Updates on reopening will be provided by the forest service.
While the trail leads to the observatory, access to the observatory itself may require separate arrangements or tours. Check their official website.
🎫 🥾 Onsite Experience
The round trip to the summit is approximately 17 miles and can take 8-12 hours or more, depending on your pace and fitness level.
The trail involves over 5,000 feet of vertical climbing, making it a strenuous and challenging hike.
Restroom facilities are limited on the trail itself. Orchard Camp may have some facilities, but it's best to use them at the trailhead.
You might encounter various plants and animals native to the San Gabriel Mountains. Keep a safe distance and do not feed wildlife.
Due to its length and elevation gain, it's considered a challenging hike. Beginners might consider hiking only a portion, like to the first waterfalls.
🎫 🦟 Nature & Wildlife
Be prepared for black biting flies, especially from Orchard Camp upwards, once it gets warm. They can be relentless.
Bug spray is recommended, but some hikers found it minimally effective against the black biting flies. Long sleeves and head coverings are also advised.
Yes, there are waterfalls along the trail, with the 'First Waterfalls' being a popular and accessible stop.
The trail passes through diverse vegetation typical of the San Gabriel Mountains, including chaparral and pine forests.
While there are streams and waterfalls, it's crucial to carry all the water you'll need, as treating natural water sources can be unreliable.
For Different Travelers
Tailored advice for your travel style
👨👩👧 Families with Kids
Be prepared for the black biting flies, which can be a significant nuisance for children. Long sleeves, hats, and potentially bug nets are essential. Ensure everyone stays hydrated and takes breaks as needed. The views can be a great motivator for kids, but managing expectations about the trail's difficulty is key.
Solo Hikers
However, it's always wise to inform someone of your hiking plans, including your expected return time. Be aware of the trail's length and elevation gain, and carry sufficient supplies, including water and snacks. The Observatory at the summit offers a clear destination and a sense of accomplishment.
Trail Runners
Be mindful of the trail's technical sections and the potential for encountering hikers, especially on the lower portions. The descent can be fast but requires careful footing. Always be aware of your surroundings and the changing trail conditions.
Deep Dives
In-depth insights and expert knowledge
The Strenuous Ascent: Hiking Mount Wilson
For those aiming for the summit, expect a full day's adventure. The trail winds through varied terrain, offering glimpses of the urban sprawl below and the natural beauty of the San Gabriel Mountains. It's a journey that tests endurance but rewards with spectacular views and a profound sense of accomplishment.
Key takeaway: Proper training and realistic expectations are vital for enjoying this demanding hike. Consider your fitness level and plan accordingly, whether you aim for the summit or a shorter segment.
Navigating the Black Fly Menace
To combat this, protective clothing is highly recommended. This includes long-sleeved shirts, long pants, and a hat to cover exposed skin. Some hikers have even resorted to wearing a bug net over their head and face for maximum protection. While bug spray is a common deterrent, its effectiveness against these specific flies can be limited.
Pro Tip: Planning your hike for cooler parts of the day or cooler seasons might help mitigate the fly issue. Always check recent trail reports for current conditions regarding insect activity.
Canine Companions on the Trail
For shorter excursions, like a hike to the First Waterfalls, dogs in good condition and accustomed to single-track trails can often manage well. Always ensure your dog is leashed, well-hydrated, and capable of handling the terrain. Be mindful of the heat and the potential for encounters with wildlife.
Important Note: While dogs can be great hiking partners, the full ascent to Mount Wilson's summit might be too demanding for most. Prioritize your dog's safety and well-being when deciding how far to go.
Social
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