The head of Mattox Canyon, looking towards Three Sisters Rock.

California > Southern Califo… > San Gabriel Mountains…

The head of Mattox Canyon, looking towards Three Sisters Rock.

Copyright Violation?

Three Sisters Rock across from Soledad Canyon.

Lower Mill Canyon with Parker Mountain and Acton in the distance.

Rate Photo

3.0 from 3 votes

Tilman Giese

Jan 31, 2026 near Acton, CA

“The head of Mattox Canyon, looking towards Three Sisters Rock.”

0 Comments

Nearby Photos

The head of Mattox Canyon, looking towards Three Sisters Rock.

Lower Mill Canyon with Parker Mountain and Acton in the distance.

BPL Road slicing through Mill Canyon

North Fork Saddle

Mill Canyon

Pacoima Canyon and Iron Canyon

Indian Canyon

Three Sisters Rock across from Soledad Canyon.

View Interactive Map

Zoom in to see details

Map Key

Favorites
Check-Ins

Nearby

PCT: Highway 15 to Agua Dulce 112.4 mi 181.0 km 2 Fontana, CA

Welcome

Join the Community! It's FREE

Already have an account? Login to close this notice.

Get Started

onX products are built by adventurers, for adventurers. We believe that every adventurer needs to know where to go, to know where they stand, and to be able to share their experiences.
About onX
Careers

iOS App Store

Android App Store

© 2026 onX Maps, Inc. Terms·Privacy