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See the Retired Peak Guides in the Archives for Microsoft Word and other versions of this peak guide.


Timber Mountain


Location: San Bernardino County, about 12 miles north of Upland, 45 miles from Los Angeles


Auto ClubLos Angeles and Vicinity
Forest ServiceAngeles National Forest
USGS ToposMount San Antonio 7½, Telegraph Peak 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: Thunder Mountain, Telegraph Peak

Printable version of this route


(USFS Adventure Pass may be required)
Distance: 10 miles round trip on trail
Gain: 3300'
Time: 5-6 hours round trip
Rating: Class 1, moderate
Navigation: Easy

Original: Warren E. von Pertz, March 1968


  • Take the 210 freeway east to Baseline Road exit in the City of Claremont. Turn left (west) at the bottom of the off-ramp onto Baseline Road.
  • Almost immediately, take the first right (north) onto Padua Ave.
  • Go 1.8 miles north on Padua to the intersection with Mount Baldy Rd. Turn right (northeast).
  • Take this road northeast and then north about seven miles to Mt. Baldy Village.
  • Continue another two and a half miles (through Baldy Village) to a fork at Icehouse Canyon. Turn right.
  • Go a short distance to a parking lot. Park here.

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.


  • From the parking area (5000'), trail 7W07 starts just to the right of an old building foundation. Hike up this trail about 3/4 mile to a trail junction with the Chapman Trail.
  • Continue straight up the canyon past Columbine Spring to another junction with the Chapman Trail.
  • Turn right and follow the trail up to Icehouse Saddle. It is also possible to take the Chapman Trail. It adds about 1 1/2 miles the hike to Icehouse Saddle. There are a number of trails at the saddle.
  • Take the first one to the left and follow it about a mile to where it crosses a ridge on the west side of Timber Mountain.
  • Leave the trail (there may be a duck) and hike east up the ridge to the summit.

Printable version of this route


(USFS Adventure Pass may be required)
Distance: 3 miles round trip from Telegraph Peak
Gain: 1500' total, 500' out plus 1000' on return
Time: 1 1/2-2 hours round trip
Rating: Class 1, strenuous with Telegraph Peak
Navigation: Easy

Original: Warren E. von Pertz, March 1968



  • See the Telegraph Peak guide.
  • From the summit of Telegraph Peak, follow the trail back to the trail junction.
  • Turn left and follow this trail into a saddle north-northwest of Timber Mountain. Continue along the trail to the top of the ridge west of the summit.
  • Leave the trail, there may be a duck, and hike east up the ridge to the summit.


Timber Mountain is in the Cucamonga Wilderness. A permit is required. Applications are available on the trail just past the Icehouse Canyon Trailhead. Fill it and drop in the box, or contact the USFS Mt. Baldy Schoolhouse Visitor Center in Mt. Baldy Village at (909) 982-2829 (8:00 am to 4:30 pm). A permit can be obtained in advancy be writing to:

San Gabriel River Ranger District
Angeles National Forest
110 North Wabash Avenue
Glendora, CA 91741
(626) 335-1251

History of Summit Signature

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