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Henninger Flats

  4.1 ( 12 ) Favorite


6.1 mile 9.9 kilometer out and back


Ascent: 1,550' 472 m
Descent: -1,550' -472 m
High: 2,533' 772 m
Low: 986' 301 m


Avg Grade: 10% (5°)
Max Grade: 39% (21°)


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Trail shared by John McKinney

A 6-mile hike up to Henninger Flats and back.

John McKinney

Features Views · Wildflowers · Commonly Backpacked

Family Friendly This hike is not too strenuous and leads to a nice place to explore


A great out-and-back up to Henninger Flats. Enjoy the exhibits and the views.

Need to Know

There is no water or flush toilets at Henninger Flats. Can be hard on pets during hot weather.


From the parking area at Eaton Canyon Nature Center, head north on the dirt Eaton Canyon Path. At a signed junction, turn right to head up Equestrian Trail, a steep but short connecting horse trail that leads to Mt. Wilson Toll Road #2N45. At the junction with Mt. Wilson Toll Road #2N45, take a right (heading out of the Eaton Canyon Park boundary) up a more gradual slope. There is not much in the way of shade until you reach Henninger Flats.

At Henninger Flats, there is much to explore, including several side roads and paths through the shade. Explore the visitor center and the exhibits. There are 3 main camping areas for overnight use but you must bring your own water. After you've had your fill and rested up, head back the way you came.

Thanks to John McKinney, The Trailmaster, for sharing this trail description. To learn more about trails in California, check out his guides at The Trailmaster Store.

Flora & Fauna

Cone bearing trees such as Coulter, sugar, knob cone, gray and Jeffery pine. And more exotic trees like Japanese black pine and Himalayan white pine.

History & Background

William Henninger came to the area to retire and prospect and discovered the mesa. He built a cabin, planted trees and small gardens. In 1895 when Henninger died, the area became a USFS tree nursery. Due to lack of water, the nursery is no longer in use.

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Jun 15, 2019
Johnny Barrett
Hike to eaton Falls then on way back went up to campground came back down the way we came back to the visitor center great hike and good weather 10mi — 4h 00m
Jun 3, 2019
Rosa Leung
Mar 15, 2019
Robert Huang
Feb 23, 2019
Ben Kim
Jan 6, 2019
Gabe Gonzales
Oct 25, 2018
Chris Rubinstein
Sep 15, 2018
Philipp Dietz
Aug 18, 2018
Robert Z

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Trail Ratings

  4.1 from 12 votes


  4.1 from 12 votes
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in California


75 Views Last Month
2,157 Since Aug 8, 2017



View of LA basin from lower campground
May 5, 2018 near Altadena, CA
Henninger Flats Sign
Aug 8, 2017 near Altadena, CA
Henninger Flats, about 3 miles into the 9 mile trail, is a great place to stop for a rest.
Aug 8, 2017 near Altadena, CA


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