Mount Wilson Toll Road other trails nearby (tap a dot to open it)
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© OpenStreetMap contributors (ODbL) · Full route · OpenStreetMap · Basemap: OpenFreeMap (OpenMapTiles, © OSM contributors).
7-day forecast
Open-Meteo (CC BY 4.0)Best time to hike
Best months: Oct–May · highs 17–26 °C (63–79 °F)
- J17°6°108
- F18°6°120
- M20°7°80
- A22°9°45
- M25°12°12
- J28°14°4
- J32°17°2
- A32°18°3
- S30°16°10
- O26°13°25
- N21°9°55
- D17°6°82
Average high °C · low °C · precipitation mm per month. Highlighted: best months.
How we pick months
Best months are those where the 1981–2010 average daily high is 10–27 °C (50–81 °F), the average overnight low is 0 °C (32 °F) or warmer, and average precipitation is 200 mm (7.9 in) or less. Values are long-term monthly averages for the ~1 km cell at the trail point on the map, from CHELSA V2.1 climatologies (Karger et al., CC0), not a forecast. Higher or more exposed parts of a route can be colder, wetter or snowier.
Trail facts
- Mapped length
- 25 km · 15 mi (OSM route, Waymarked Trails)
- Mountain
- Mount Wilson (mountain, 1,737 m; GeoNames)
- Mountain range
- San Gabriel Mountains (Transverse Ranges › Pacific Coast Ranges; GMBA)
- Nearest town
- 2.5 km E of Altadena (Los Angeles County, California) · GeoNames
- Best months
- Oct–May
- Country
- United States of America
- Region
- California
- Continent
- North America
- Route type
- Local route
- From / to
- Altadena → Mount Wilson
- Route centre
- 34.2073, -118.0822
- Route start
- 34.1934, -118.1048
- OpenStreetMap
- relation 12149115
- Wikidata
- Q6924627
How it’s scored
Hikers can rate difficulty from 1 to 10 (1 = flat, short, easy walk for anyone; 3 = gentle hills, a little effort; 5 = moderate climbs, some fitness needed; 7 = steep or long, solid fitness required; 10 = extremely strenuous or technical; long steep climbing; experienced hikers only). The community average is shown once at least 3 people have rated the trail; until then the official or computed score is used when we have one.
More trails on Mount Wilson
All 4 →Nearest trails
distance from the trail startEaton Canyon Trail
1.3 mi · 2.1 km · California
Sam Merrill Trail (Lower)
1.5 mi · 2.4 km · Angeles National Forest
Altadena Crest Trail
1.9 mi · 3.1 km · California
Castle Canyon
2.0 mi · 3.2 km · Angeles National Forest
Sunset Ridge
2.1 mi · 3.4 km · Angeles National Forest
Sam Merrill (Middle)
2.2 mi · 3.5 km · Angeles National Forest
All trails in California → · All 36,834 trails in United States of America →