Henninger Flats Trail

MODERATE 142 reviews
#3 of 5 trails in

Henninger Flats Trail is a 12.4 mile lightly trafficked loop trail located near Pasadena, California that features beautiful wild flowers and is rated as moderate. The trail offers a number of activity options and is accessible year-round. Dogs are also able to use this trail but must be kept on leash.

12.4 miles
3015 feet

dogs on leash





mountain biking

nature trips

trail running




wild flowers


no shade

Fire road, easy hikebike, nice views The hike to Henninger Flats is on a fire road with no shade. Therefore, hike very early during the summer. There are nice views of LA if you happen to hike after a rain storm or a windy day. Scenery is nice when you reach the Flat. There is a Nature center, a picnic area and public campground set amid trees.

22 hours ago

Definitely not for beginners.

1 month ago

Classic. Challenging.

1 month ago

Great trail with campsite to test out new gear. There's a soda machine in the museum / sign in (If staying overnight, just ring the doorbell to have the attendant come down to give you a fire permit). There's usually scouts at the camp but I haven't had a problem finding a spot to setup my hammock. I usually camp at the upper camp and the last time I was there, there was a homeless squatter in a red tent.

Beautiful Views. Awesome Camps! The hike was brutally perfect, and my tan. superb.

3 months ago

Not a hike as much as a switchback fire road. Go in the early morning since there is no tree coverage until the end. If you have them, bring your hiking poles. Pretty views of the city and a couple lookout points with benches.

3 months ago

it my first time there everything is good but only have 3 restrooms first

4 months ago

Meh, It's a fire road with no shade (go early, when it's cool or overcast) and views of the city. Not really a proper "hike" but a great workout since it's straight up.

5 months ago

Tough, felt never ending but greattttt workout!

5 months ago

This was by far a great workout!!! Uphill no breaks no shade, go early to beat the heat.

5 months ago

5 months ago

This is a short but all up hill hike along a dirt road. It's not very scenic other than views above the city. This is a good hike for a work out. Or a quick easy backpack trip or test out new gear or learn how to backpack. Go early in the morning or late afternoon because during the peak of the day is no shade and it gets HOT!

At Henniger Flats there are campsites for free. Check in with ranger.

Bring water! There is NO WATER along trail or up at campgrounds.

Park on neighboring streets make sure to read parking signs.

5 months ago

Not sure sure how hiking up a fire road to a well-manicured campground, equivalent to that of a car-camping site, can really be called "backpacking." There are people that love California sushi rolls, too.

5 months ago

This hike offers a great workout with a steady 3 mile climb on a wide, well groomed, highly trafficked gravel path. The incline makes this a moderately difficult hike, but the path itself is suitable for all. The hike offers great views that overlook Pasadena and beyond and hikers can enjoy a snack or even overnight tent camping at the top (Henninger Flats). The top is well shaded and there are a few historical monuments at the top to explore before heading back down the hill. Proximity to Pasadena, ease of parking, and the great workout factor make this hike one to enjoy repeatedly. If I didn't live nearby, I might opt for other, more technical or less traveled paths to enjoy as this one is well used by locals. Reminder: Go early on hot days and don't park on Pinecrest...they were ticketing today!!

6 months ago

There is plenty of street parking for overnight backpacking. Took about 1 hour to hike the trail up from the TH to the campgrounds. I stayed in the lower campground as the city views were PHENOMENAL from there, and I was backpacking solo (the upper levels were more for camping groups and people that wanted to feel isolated). There is a ranger on site 24 hrs/day, and they also give free firewood. Also, there is a basic toilet, and water from a faucet out of the ground, but I packed in most of my water anyway. The only caveat for this site is to NOT HIKE UP when the temperatures are high, as there is literally zero shade the entire 3 miles up the rather steep fire road. Not fun at all when you are lugging a backpack and a gallon of water into camp.

8 months ago

This one was a great workout. Total incline, be prepared. Go early as it gets got and almost no shade until you get to the top.

9 months ago

It was a great hike all up hill. Great workout. When you reach the top it's like your walking into another dimension. The waterfall was nice but too crowded, go early and beat the crowd.

10 months ago

This was a great hike! At times it seemed never ending, but it is a very rewarding hike. Our two labs were so exhausted afterwards....love it!!

Monday, January 16, 2017

It's been about 3 decades since I've been up to the flats , My greatest memories of being up there was when I was in elementary school. A teacher by the name of David Osborne use to take us kids hiking up the trails (Group of 20 or so) .We would get up to the flats have lunch and then have a few games of capture the flag ...
Mr. Osborne died of cancer when I was about 10 years old I'm 41 now ....

I'm planning on a hike up there real soon just to take a day to remember a great Teacher,coach and friend !

Thanks for the memories!

Sunday, November 20, 2016

Good hike on a cool or overcast day. Be careful where you park in surrounding neighborhoods. No parking signs can be hidden by bushes.

Saturday, July 02, 2016

Detoured to this trail since Millard-Dawn Mine was closed (1-4 July, 2016). Straightforward enough, decent views and not overly crowded early on a Saturday.

Henniger Flats itself is a charming spot with picnic tables and lots of big trees. Do not skip the little museum, it has some great photos from the golden age of the Front Range hiking. We spent much more time in there than I would have thought.

Note that I only turned on AllTrails for the descent, had forgotten to turn it on when we started. Total round trip is about 6 miles.

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