The Mount Wilson Toll Road (1891–1936) is a historic roadway which ascended Mount Wilson via a vehicular passable road from the base of the foothills in Altadena. It was accessible from Pasadena via Santa Anita Avenue (nowadays the north-south portion of Altadena Drive) which drove right to the front porch of the toll house.

The Mt. Wilson Toll Road can take you to a few different trails and destinations, the most obvious of which being the Mt. Wilson Observatory. However, the ride described here takes you Henninger Flats, the closest and "easiest" destination to …

Also, while this trail is called the Toll Road, little of the road remains. It's now more like a double wide dirt trail that's pretty well leveled all the way to the top. It's a great trail for groups, as you can hike 2-3 wide and chat it up all the way to the top.

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%.

Mount Wilson Toll Road is an 18-mile out-and-back dirt road trail that climbs from Altadena, California up to the top of Mount Wilson. The trail is windy, long, and exposed with scenic views overlooking Los Angeles to the west and the San Gabriel Mountains to the east.

We continued on the Mount Wilson Toll Road. This road is mostly exposed to the sun but will give you some beautiful views of the mountains and the city. When you decide to turn around, remember that what comes down must go back up.

The Mt Wilson Toll Road Trail in Altadena, CA, is a historic route that was once used as a toll road for travelers heading to the summit of Mt. Wilson. The trail offers hikers a moderate to strenuous trek with beautiful views of the surrounding San Gabriel Mountains.

Check out this 28.5-km out-and-back trail near Altadena, California. Generally considered a challenging route, it takes an average of 9 h 47 min to complete. This is a very popular area for hiking and mountain biking, so you'll likely encounter other people while exploring. The trail is open year-round and is beautiful to visit anytime.

The Mount Wilson Toll Road is a steep, steep fireroad climb, but if you just want to ride down it it can be shuttled by driving up the ACH (Angeles Crest Highway, CA Hwy 2) to the Mount Wilson observatory.