Are dogs allowed on Mount Islip?

Yes, dogs are allowed on Mount Islip but must be kept on a leash at all times. Pack out waste and respect wildlife.

Do I need a permit to hike Mount Islip?

No, Mount Islip does not currently require a permit. Still check for seasonal closures or day-use fees with the managing agency before heading out.

How difficult is Mount Islip?

Mount Islip is rated difficult. It is 5.5 miles long with 1,998 feet of elevation gain. Difficulty ratings reflect a combination of distance, elevation gain, and terrain — your experience will depend on your fitness level and trail conditions.

Status unknown — verify before visiting

We don't have current condition data for this trail. Check with the land manager before you go.

See California trail conditions

DifficultOut and Back

California

Mount Islip

Valyermo, California

5.5 mi

Distance

1,998 ft

Elev. Gain

2h 31m

Est. Time

Out & Back

Route Type

Difficult

Difficulty

About This Trail

Imported description

It is possible that the road may close in the winter. It is recommended that you check prior to your visit. The views from the summit of Mount Islip are stunning. You can see Crystal Lake, the front range of the San Gabriels and the San Gabriel river canyon. The hike starts at the forest service road and goes up for a half mile before heading left to Little Jimmy Camp. The group that is less ambitious can take a break in the camp and the group that is more ambitious can head up to the summit. The summit trail is at the back of Little Jimmy camp. The summit trail leads to a ridgeline. You should stay on the ridgeline trail up to the summit if you have a junction with another trail.

From Wikipedia

Mount Islip is a 8,250-foot (2,515 m) peak in the Angeles National Forest in California, United States. On a clear day the sharp, high peak provides impressive views of the Mojave Desert, the Los Angeles Basin, Santa Catalina Island, and San Clemente Island.

Source: Wikipedia — text licensed CC BY-SA 4.0. Verify trail conditions and seasonal closures with the managing agency before you go.

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:2,153 ft

Max:2,508 ft

609 ft

Trail Details

Route Type: Out & Back
Surface: Dirt

Official sources & verification

We don't have curated agency sources for this trail in our cache yet. Outdoors is not the permitting authority — confirm conditions, permits, and access with the managing agency before you go. If you know who manages this trail, please tell us.

Reviews

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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.

Hunt context