Henninger Flats is a small hanging basin 2,600 feet (792.5 m)[1] above sea level in the San Gabriel Mountains in the Angeles National Forest.

The trailhead to reach the flats is at the top end of Eaton Canyon in Pasadena, California.

Their firstborn, a son named Natividad, was baptized at the San Gabriel Mission in December 1858.

The produce he carried into town, a mile and a half down the steep trail that ended in Eaton Canyon.

[8] Since 1928, the flats have been used as a high elevation forest nursery by the Los Angeles County Fire Department.

[9] The toll road was washed out by a landslide in 2005 approximately 200 yards (182.9 m) past the Eaton Canyon bridge, but was re-opened in early September 2009 as the result of fire crews needing vehicular access to the area while fighting the Station Fire.