Tunnel cut into the steep base of San Gabriel Peak and completed in 1942 by the USFS.
-
- View of Mueller Tunnel from Mt. Markham
Hikes:
Eaton to San Gabriel Peak: 2.4 miles, 670′ gain and loss
Eaton Saddle to Mt. Lowe: 3.2 miles, 520′ gain and loss.
Eaton Saddle to Mt. Markham: 3.2 miles, 790′ gain and loss
San Gabriel Peak Trailhead to San Gabriel Peak to Eaton Saddle: 3 miles, 1,411′ gain, 670′ loss
