6 miles
1400 feet gain
4/10
Sierra Madre ,CA (91024) 17.2 miles from you Weather Map
From the Foothill Freeway (210) in Pasadena, exit on Lake Avenue. Turn north and continue to Altadena Drive. Make a right, continue about ten blocks , and look closely to your left. Turn left on Pinecrest Drive and wind a few blocks through a residential area to the trial-head. The trailhead is found in 2200 block of Pinecrest. You'll spot a lock gate where the trail starts
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.