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** Use at Your Own Risk **
12B |
Mount Disappointment |
5960' |
Location: Los Angeles County, about 4 miles north of Altadena, 30 miles from Los Angeles
Maps
| Auto Club | Los Angeles and Vicinity |
| Forest Service | Angeles National Forest |
| USGS Topos | Chilao Flat 7½, Mount Wilson 7½ |
| Official HPS Maps | TPO file - Save to your computer then open with National Geographic TOPO! |
| Viewable JPG file - Approximately 630K | |
| 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: Mount Deception, San Gabriel Peak
ROUTE 1
(USFS Adventure Pass may be required)- Distance: 4 miles round trip on trail and road
- Gain: 1200'
- Time: 2 hours round trip
- Rating: Class 1, easy
Original: Charlie Knapke, December 1996
DRIVING ROUTE 1
- From the intersection of I-210 and Angeles Crest Highway (SR 2), drive north on Angeles Crest Highway 9.5 miles to Angeles Forest Highway. Keep straight.
- Continue about 4.5 miles to the junction with the Mount Wilson Road at the Red Box Ranger Station. Turn right.
- Drive 0.4 mile to a paved road (2N52) on the right. Park here. Do not block the gate.
HIKING ROUTE 1
- At the parking area (4760'), the San Gabriel Peak Trail starts just to the left of the gate. Hike up this trail to where it meets a paved road.
- Turn left and follow the road to a road fork between San Gabriel Peak and Mount Disappointment (5800'-).
- Turn right and follow the road up to the summit. The register is in a pile of rocks at the far end of a large concrete pad.
ROUTE 2
(USFS Adventure Pass may be required)- Distance: 6 miles round trip on paved road
- Gain: 1300'
- Time: 2 1/2 hours round trip
- Rating: Class 1, easy
Original: Warren E. von Pertz, March 1968
DRIVING ROUTE 2
- Same as Route 1.
HIKING ROUTE 2
- From the parking area (4760'), pass the gate and hike up 2N52 about 2 miles to saddle 5550'. This is the turnoff for Mount Deception.
- Continue on 2N52 another 3/4 mile and 400' gain to a road fork between San Gabriel Peak and Mount Disappointment (5800'-).
- Turn right and follow the road up to the summit. The register is in a pile of rocks at the far end of a large concrete pad.
HISTORICAL NOTES
In 1894, USGS surveyors working eastward sighted this peak from Santa Susana Mountain, west of the San Fernando Valley. It appeared to be the highest point in the immediate area (perhaps it was more peaked, and blocked the view of San Gabriel Peak in those days), so they planned to use its peak at their next triangulation point. Upon reaching the summit, they were "disappointed" to find San Gabriel Peak, 1/2 mile further east, to be 167' higher, so they continued on to it to set up their instruments. In 1955, the summit was flattened for a Nike missile station. 10 years later the missile site was abandoned, though military communications still use the peak.
History of Summit Signature
Climbing Archives
Please report any corrections or changes to the Mountain Records Chair.