Mount Disappointment
Mount Disappointment rises to 1,819 m in California. Waterman Mountain stands 2,433 m to the east-northeast, 11 miles off. The nearest named place is San Gabriel Peak, a peak 0.4 miles away. Arroyo Seco Historic Parkway - Route 110 passes 7.3 miles off.
The story
Mount Disappointment is a mountain in the San Gabriel Mountains in Los Angeles County, California with a summit elevation of 5,963+ feet (1,818+ m). It was named "Disappointment" in 1894 when USGS surveyors in the Wheeler Survey sighted it from the Santa Susana Mountains, believing it to be the highest point in the immediate area, decided to use it as their next triangulation point. When they reached the summit, however, they discovered that San Gabriel Peak half a mile (0.8 km) to the east was 167 feet (51 m) higher and it was a disappointment so they moved there instead. A Nike missile site was located there in 1955 and the summit was flattened to accommodate it. The missile site was abandoned in 1965. The mountain top is now an important telecommunications site for both commercial and government organizations.
From Wikipedia, CC BY-SA 4.0.
Wikidata Q6920446, referenced by the OpenStreetMap record.
What the record says
- Elevation
- 1819 m
How to reach it
- 7.3 mi off the Arroyo Seco Historic Parkway - Route 110, National
Overlooks nearby
- Point Grandview · 13 mi
Named places within 25 miles
- San Gabriel Peak: 0.4 mi
- Mount Deception: 0.6 mi
- Mount Markham: 0.7 mi
- Mount Lowe: 1.0 mi
- Occidental Peak: 1.5 mi
- Ye Alpine Tavern: 1.4 mi
- Mt Lowe Observatory Ruins: 2.4 mi
- Resevoir: 2.6 mi
- Echo Mountain House: 2.6 mi
- Mount Lowe Railway Historical Marker: 2.6 mi
- Mount Wilson Observatory Museum: 3.0 mi
- JPL Building 186 (Theodore von Kármán Museum and Auditorium): 5.2 mi
- Lizzies Trail Inn: 6.2 mi
- Richardson House: 6.2 mi
- Kidspace Children's Museum: 7.1 mi
- Rubio Canyon: 3.1 mi
- The Cobb Estate: 3.2 mi
- LA County Fire Open Space: 3.4 mi
- Casa Del Caballero: 3.5 mi
- Andrea Wilson Triangle: 3.7 mi
- Charles S. Farnsworth Park: 3.6 mi
- Mount Lowe Park: 3.6 mi
- Robert M McCurdy Nature Center: 4.8 mi
- Charles White Park: 4.8 mi
- Washington Park: 5.7 mi
- Walsh Home (Beverly Hills 90210): 3.9 mi
- Dilan's Home (Beverly Hills 90210): 3.9 mi
- Wisteria Vine, Worlds Largest Blossoming Plant: 5.9 mi
- Sierra Madre Memorial Cannon: 6.5 mi
- Enchanted Railroad: 6.8 mi
- Altadena Community Garden: 4.4 mi
- Marcy's Vegetable Garden: 4.8 mi
- Marcy's Garden: 4.8 mi
- Bev's Vegetable Garden: 4.8 mi
- Bev's Native Garden: 4.8 mi
- Unincorporated Mural: 4.6 mi
- Williamson Gallery: 7.1 mi
- Student Gallery: 7.1 mi
- The Redoubt: 7.7 mi
- The Birds and Trees of Komitas: 7.8 mi
- Red Box Picnic Area: 0.8 mi
- Switzer Picnic Area: 2.6 mi
- Paul Little: 4.4 mi
- Hidden Springs: 5.1 mi
- Charlton Flats Picnic Area: 6.2 mi
- Not Much of a Spring: 5.5 mi
- Silk Tassel Spring: 5.5 mi
- Doe Spring: 7.0 mi
- Baughman Spring: 7.6 mi
- Deer Spring: 10.0 mi
- Leontine Falls: 2.6 mi
- Thalehaha Falls: 2.7 mi
- Roaring Rift Falls: 2.7 mi
- Suspended Boulder Falls: 2.7 mi
- Grand Chasm Falls: 2.7 mi
- Upper Switzer Falls Grotto: 3.0 mi
- Spa Palace: 16.1 mi
- Llano Del Rio: 24.0 mi
Other summits around it
The highest named summits within 11.5 miles of Mount Disappointment. Elevation from each summit’s own record; bearing measured between the two coordinates.
| Summit | Bearing | Elevation | Distance |
|---|---|---|---|
| Waterman Mountain | ENE 57° | 2,433 m | 11.5 mi |
| Twin Peaks | ENE 65° | 2,365 m | 11.3 mi |
| Pacifico Mountain | NNE 23° | 2,165 m | 10.2 mi |
| Granite Mountain | NNE 13° | 1,998 m | 8.8 mi |
| Mount Gleason | NNW 335° | 1,990 m | 9.9 mi |
| Roundtop | NNE 16° | 1,908 m | 7.6 mi |
| Mount Hillyer | NE 36° | 1,881 m | 8.8 mi |
| Strawberry Peak | NNW 341° | 1,879 m | 2.7 mi |
When to go
Light through the year
| Date | Sunrise | Golden hour | Sunset |
|---|---|---|---|
| March equinox | 06:57 | 18:31 | 19:04 |
| June solstice | 05:42 | 19:31 | 20:08 |
| September equinox | 06:41 | 18:18 | 18:51 |
| December solstice | 06:55 | 16:09 | 16:47 |
Local time (America/Los_Angeles).
Climate normals
Months averaging 50–80 °F: Apr–Nov.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg °F | 47 | 46 | 49 | 52 | 59 | 68 | 74 | 75 | 70 | 62 | 53 | 46 |
| Precip in | 7.7 | 8.3 | 5.1 | 2.1 | 1.0 | 0.2 | 0.2 | 0.0 | 0.3 | 1.3 | 1.9 | 4.0 |
1991–2020 U.S. Climate Normals, NOAA NCEI — MT Wilson CBS, 2 mi away.
Where this comes from
Location and category confirmed against OpenStreetMap.
OpenStreetMapWikidataOpenStreetMap element node/358807978
Day trips start here
- Angeles National Forest · 6 mi
- La Cañada Flintridge · 6 mi
- Pasadena · 6 mi
- Arcadia · 9 mi
- Glendale · 9 mi
- Monrovia · 9 mi
Take the scenic way to Mount Disappointment.
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