Skip to main content
Mount Islip Trail route map
Difficulty: DifficultOut and Back
California

Mount Islip Trail

Azusa, California

8.0 mi

Distance

3,320 ft

Elev. Gain

3h 52m

Est. Time

Out & Back

Route Type

Difficult

Difficulty

About This Trail

Mount Islip Trail is an out-and-back trail in Los Angeles County, California. It is 8 miles long and gains 3,320 feet. The nearest town is Glendora, California, about 10 miles away in a straight line.

From the trail data on this page.

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:1,795 ft
Max:2,509 ft
Gain:1,012 ft
Loss:1,012 ft
Elevation profileA line rising and falling between 1,795 ft and 2,509 ft across 8.0 mi along the route, drawn from start to end.1,795 ft2,033 ft2,271 ft2,509 ft0.0 mi2.0 mi4.0 mi6.0 mi8.0 mi

Elevation at the labelled points along this route
PointDistance from startElevation
Start0.0 mi1,795 ft
High point4.0 mi2,509 ft
End8.0 mi1,795 ft

Trail Details

Route Type
Out & Back

Official sources & verification

Verify before you go

Where it is

Nearest town:
Glendora, 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 Mount Islip Trail
Crystal Lake and Windy Gap Trail

Crystal Lake and Windy Gap Trail

12.1 mi
TrailDifficulty: Expert
Half Knob Trail

Half Knob Trail

1.0 mi
TrailDifficulty: Easy
Windy Gap to Mount Islip to Big Cienega Trail

Windy Gap to Mount Islip to Big Cienega Trail

6.5 mi
TrailDifficulty: Difficult
Mount Baden-Powell

Mount Baden-Powell

15.5 mi
TrailDifficulty: Expert
Crystal Lake to South Mt. Hawkins Trail

Crystal Lake to South Mt. Hawkins Trail

12.2 mi
TrailDifficulty: Expert
Crystal Lake to Throop Peak

Crystal Lake to Throop Peak

9.2 mi
TrailDifficulty: Expert

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
Mount Shasta via Avalanche Gulch Route

Mount Shasta via Avalanche Gulch Route

California

10.3 mi7,159 ftgain
TrailDifficulty: Expert Permit

Panorama Trail

California

11.1 mi2,907 ftgain
TrailDifficulty: Expert
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
Spot an error in our data on Mount Islip Trail?