USE AT YOUR OWN RISK

16F

Thunder Mountain

8587'

Location: Los Angeles County, about 12 miles north of Cucamonga, 48 miles from Los Angeles

Maps

Auto ClubLos Angeles and Vicinity
Forest ServiceAngeles National Forest
USGS ToposTelegraph Peak 7½, Mount San Antonio 7½
Official HPS Maps TPO file - Save to your computer then open with National Geographic TOPO!
 Viewable JPG file - Approximately 1.3 megs
 GPX file or Google Earth KML file to download to GPS units and other map software (How to use GPX and KML files)
 Routes as shown on CalTopo using the above files (How to use CalTopo)

Nearby Peaks: Telegraph Peak, Timber Mountain

ROUTE 1

(USFS Adventure Pass may be required)
Distance: 11 miles round trip on road and trail
Gain: 2400 '
Time: 4-5 hours round trip
Rating: Class 1, moderate

Original: Warren E. von Pertz, July 1969

DRIVING ROUTE 1

Note: There is a good parking lot for ridesharing in this area. To get there, after turning west on Baseline Road, continue past Padua Avenue a short distance to Mills Avenue. Turn north on Mills, and continue to Mt. Baldy Road. The parking lot is at the northeast corner of this intersection.

HIKING ROUTE 1