Skip to main content
Chilao to Mt. Hillyer via Horse Flats Trail route map
Difficulty: ModerateLoop
California

Chilao to Mt. Hillyer via Horse Flats Trail

Mount Wilson, California

6.8 mi

Distance

1,394 ft

Elev. Gain

2h 52m

Est. Time

Loop

Route Type

Moderate

Difficulty

About This Trail

We don't publish a description for Chilao to Mt. Hillyer via Horse Flats Trail unless we can point you at the agency it came from. We don't have one yet. The planning figures above — distance, elevation gain, estimated time, route type — come from the source listed on this trail.

The managing agency is the authority for conditions, closures and route notes. See official sources below. Spot something we should add?

Trail Conditions

Trail Conditions

Unknown

We have no current condition data for this trail. Check with the operator before you go, and submit a report below if you've been recently.

No recent condition reports. Be the first to share what you see on the trail.

Elevation Profile

Min:1,589 ft
Max:1,892 ft
Gain:425 ft
Loss:425 ft
Elevation profileA line rising and falling between 1,589 ft and 1,892 ft across 6.8 mi along the route, drawn from start to end.1,589 ft1,690 ft1,791 ft1,892 ft0.0 mi1.7 mi3.4 mi5.1 mi6.8 mi

Elevation at the labelled points along this route
PointDistance from startElevation
Start0.0 mi1,590 ft
High point3.7 mi1,892 ft
End6.8 mi1,590 ft

Trail Details

Route Type
Loop

Official sources & verification

Verify before you go

Where it is

Nearest town:
Monrovia, CA · about 10 mi away
County:
Los Angeles County, CA

Nearest town and county from U.S. Census Bureau place records and county boundaries.

We display cached information from agency feeds. Hours, fees, permits, closures, fire restrictions, and conditions change without notice. Outdoors is not the permitting authority. Confirm current conditions for this trail using the links above before you go — you are responsible for compliance. Last verified by us: May 23, 2026. Our copy is more than a month old — please reconfirm with the agency before relying on it.Spot an error in our data?

Reviews

No reviews yet

Be the first to share your experience and help others plan their visit.

Legacy import — verify before navigating

Path geometry came from our pre-launch legacy database. Routes have not yet been re-verified against the operator and may differ from the actual trail.

Nearby Trails

More trails near Chilao to Mt. Hillyer via Horse Flats Trail
Chilao to Devil's Canyon Trail

Chilao to Devil's Canyon Trail

9.5 mi
TrailDifficulty: Difficult

Silver Moccasin Nrt

4.6 mi
TrailDifficulty: Moderate

National Forest Hiking Trail

0.2 mi
TrailDifficulty: Easy
Creekside

Creekside

0.5 mi
TrailDifficulty: Easy
Mt. Hillyer Trail from Horse Flats Campground

Mt. Hillyer Trail from Horse Flats Campground

3.2 mi
TrailDifficulty: Moderate
Mt Hillyer via Silver Moccasin & Mt Hillyer trails

Mt Hillyer via Silver Moccasin & Mt Hillyer trails

7.0 mi
TrailDifficulty: Difficult

Stay nearby

Campgrounds near this trail

More campgrounds

Similar length

Similar trails in California

All California trails
Yosemite Falls Trail

Yosemite Falls Trail

California

7.2 mi2,700 ftgain
TrailDifficulty: Difficult
Four Mile Trail

Four Mile Trail

California

9.6 mi3,199 ftgain
TrailDifficulty: Difficult
Mount Tallac Trail

Mount Tallac Trail

California

10.2 mi3,865 ftgain
TrailDifficulty: Expert Permit
Lassen Peak

Lassen Peak

California

4.4 mi2,106 ftgain
TrailDifficulty: Difficult
Bumpass Hell Trail

Bumpass Hell Trail

California

6.3 mi1,837 ftgain
TrailDifficulty: Difficult
Mount San Antonio via Baldy Bowl Trail

Mount San Antonio via Baldy Bowl Trail

California

8.8 mi5,673 ftgain
TrailDifficulty: Expert
Spot an error in our data on Chilao to Mt. Hillyer via Horse Flats Trail?