Mount Hillyer Trail

San Gabriel Mountains National Monument, California

Elevation Gain1,218ft
Trailhead Elevation5,650ft
Elevation Min/Max5639/6206ft
Elevation Start/End5650/5650ft

Mount Hillyer Trail

Mount Hillyer Trail is a hiking, biking, and horse trail in Los Angeles County, California. It is within San Gabriel Mountains National Monument. It is 2.2 miles long and begins at 5,650 feet altitude. Traveling the entire trail is 4.5 miles with a total elevation gain of 1,218 feet. The trail ends near the Horse Flats camp site. This trail connects with the following: Mt Hilyar Trail and Horse Flats Road.

Mount Hillyer Trail Professional Reviews and Guides

"This moderate loop along parts of the Silver Moccasin Trail meanders through the boulder-strewn landscape that served as a hideout for horse thieves and early rangers alike.

Although the somewhat disputed summit isn’t much to write home about, the hike itself is in a lovely region of the San Gabriels with some ?ne views of nearby prominent peaks."

"Mount Hillyer is a short little trip that anyone can accomplish. There is a bit of elevation gain, but it is negligible, and this is really just a short walk up a hill. Surprisingly, the peak isn’t named because it is “hillier” it gets its appellation from Mary Hillyer, a clerk for the forest supervisor’s office in the early days of the Forest Service. There isn’t much in the way of a summit, but the scenery is nice and picturesque. There are giant boulders everywhere, some suitable for climbing. You might even spot climbers bouldering in this area."

"Lovers of the high Sierra Nevada may get some sense of deja vu atop the rounded ridge known as Mount Hillyer. The breeze sings in the branches of sugar pines, Jeffrey pines, Coulter pines, and bigcone Douglasfirs. Angular outcrops and large boulder piles lie on the slopes."

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Trail Information

San Gabriel Mountains National Monument
Nearby City
San Gabriel Mountains National Monument
Angeles National Forest/San Gabriel Mountains National Monument, Los Angeles River Ranger District
Local Contacts
USGS Chilao Flat
Local Maps