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April 28 @ 8:00 am - 11:30 am

Route: Via Eaton Canyon and up the Mt. Wilson Toll Road

Distance: 7-8 miles RT

Elevation Gain: 1500′

Difficulty: Moderate, 5 on a scale of 1-10

Duration: 3 to 4 hrs. including a short break

Dogs: OK, must be on leash

Parking: Use Eaton Canyon parking lot. There is overflow parking just after you enter. Or park on Altadena Dr. No Adventure Pass needed.

Please note we will hike up Eaton Canyon but our ultimate destination is Henninger Flats.

You Should Have: 2+ liters water, snacks, layered clothing, hiking shoes/boots, sunglasses, sunscreen.

I call this the ‘decent’ hike. Decent trail, decent views, decent work-out. The people are decent too, although once when I was at Henninger Flats the LA County Sheriff’s Dept. was looking for an escaped convict up there– but that was four years ago, so I guess they’ve caught up with him by now.

Here’s the history lesson: Henninger Flats is a small hanging basin 2,600 feet (792.5 m) above sea level in the San Gabriel Mountains in the Angeles National Forest. It was part of the Mount Wilson Toll Road. The trailhead to reach the flats is at the top end of Eaton Canyon in Pasadena, California. Around 1880, William K Henninger settled in a small basin above Altadena. Henninger was a gold prospector. The area was originally purchased by Peter Stiel through the Homestead Act. Stiel’s friend Henninger was squatting in the area since 1884. (Hey, that’s what friends are for—). Henninger married a Baja California Indian named Teresa, and they had a son and three daughters. Henninger built a house and a cistern in the flats for water storage and farmed the area. In 1892 Henninger, T. P. Lukens and R. J. Busch started the very first experimental reforestation in California at Henninger Flats. Henninger died in 1894, and after the property was passed down a generation or so, it was sold for $76,600 as part of the Mount Wilson Toll Road. In 1903, Lukens established a nursery at Henninger Flats. Since 1928, the flats have been used as a high elevation forest nursery by the Los Angeles County Fire Department.

From Wikipedia–accuracy not guaranteed.

See you on the trail!

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April 28
8:00 am - 11:30 am
Event Category:


Eaton Canyon Nature Center
1750 N Altadena Dr
Pasadena, CA 91107 US
+ Google Map


Los Angeles Hiking Group

Trail statistics are approximate.  For safety purposes always assume they are underestimated. But don’t be disappointed if they are overestimated. Bring more water and snacks than you think you’ll need.

Trail descriptions are based on previous hikes. Current conditions are unknown until arrival. Expect the unexpected and plan accordingly.

The Organizers and members in this group are not professional leaders, guides, or mountaineers. The function of the member or organizer is only to organize the trip. Each person who shows up for a trip/meetup (and their guest or guests) is responsible for his or her own safety. By attending a hike, or any other event organized by this group, you are acknowledging that you and any guests that you bring are aware of the risks, dangers and hazards associated with the activity and freely accept and fully assume all such risks, dangers and hazards, and further agree to release and discharge the Organizers, Members of the Hiking With Dean Meetup Group from and against any and all liability arising from your participation in the group activities per the ASSUMPTION OF RISK AND LIABILITY WAIVER.

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