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Mt. Wilson Toll Road

 3.9 (16)

9.1 Miles 14.7 Kilometers


4,405' 1,343 m


-87' -26 m



Avg Grade (5°)


Max Grade (12°)

5,647' 1,721 m


1,256' 383 m




Getting forecast...

A long and steady grind up Mt. Wilson.

Chris Woodruff

Dogs Leashed

Features -none-

Family Friendly Wide easy trail with minimal exposure. It is a bit steep so does require low gearing and/or strong legs.


This is a long fire road climb up to the top of Mt. Wilson. It just keeps going and going. The grade is pretty consistently around 10%. From the bottom up to Henninger Flats is about 2.5 miles of wide open fire road with no shade. When you reach Henninger Flats, you'll find some large trees, picnic tables, a water fountain, and the Henninger Flats Museum.

As you continue up, you'll find a split in the fire road. Keep right and climb. Near the top, you'll find a bit more shade in spots. The view is fantastic on a clear day as you come around to the south side of the ridge and climb the final section to the top.

At about 7.5 miles, you'll intersect with the Mt. Wilson Trail. Keep left and rejoin onto the Mt. Wilson Toll Road in about 0.5 mile.

There is a great lookout at the top. Be sure to check out the Mt. Wilson Observatory if you have time.


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Your Check-Ins


Jun 23, 2018
Ganegoda Perera
Oct 12, 2017
Luis Perez
5000ft climb with views of Los Angeles county 7mi
Sep 1, 2017
Oscar Mendoza
Jul 8, 2017
Alex Hatem
Feb 27, 2016
Kyle Chin
Jan 14, 2016
Mike Obermeyer
It hailed and rained a little at the top. I was glad that I had a hat and some winter gloves in my backpack for the ride down. the cosmic cafe had ... — 5h 12m
Aug 17, 2014
Swerve Rider
Aug 16, 2014
Swerve Rider

Trail Ratings

  3.9 from 16 votes


  3.9 from 16 votes
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in California


244 Views Last Month
11,123 Since Apr 16, 2014
Intermediate/Difficult Intermediate/Difficult

no water at henninger flats. bring your own. Jun 4, 2018
Jeff Tischer
Los Angeles, CA
Jeff Tischer   Los Angeles, CA
This is a long brutal suffer-fest as the climb just doesn't let up. Leave early in the summer or you'll cook as there is a lot of exposure down low and higher. I made the mistake of riding my old hardtail with 1.75 street/hardpack tires and there is a moderate amount of loose rock and sand up higher. Use a good trail bike on this. There are some nice views along the way though. Jul 29, 2018

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