Skip to main content
Mueller Tunnel via Loma Alta Trailhead route map
Difficulty: ExpertOut and Back

Mueller Tunnel via Loma Alta Trailhead

Altadena, California

15.1 mi

Distance

7,290 ft

Elev. Gain

7h 12m

Est. Time

Out & Back

Route Type

Expert

Difficulty

About This Trail

Mueller Tunnel via Loma Alta Trailhead is an out-and-back trail in Los Angeles County, California. It is 15 miles long and gains 7,290 feet. It is in or next to Altadena, California.

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:407 ft
Max:1,638 ft
Gain:2,222 ft
Loss:2,222 ft
Elevation profileA line rising and falling between 407 ft and 1,638 ft across 15.1 mi along the route, drawn from start to end.407 ft817 ft1,228 ft1,638 ft0.0 mi3.8 mi7.6 mi11.4 mi15.1 mi

Elevation at the labelled points along this route
PointDistance from startElevation
Start0.0 mi410 ft
High point7.3 mi1,638 ft
End15.1 mi410 ft

Trail Details

Route Type
Out & Back

Official sources & verification

Verify before you go

Where it is

Nearest town:
Altadena, CA · in or next to town
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.

Spot an error in our data on Mueller Tunnel via Loma Alta Trailhead?