Historic site · California
Speed of Light Experiment
Speed of Light Experiment is a historic site in California, at a modelled elevation of 1,863 m. San Jacinto Peak stands 3,288 m to the northeast, 5.4 miles off. The nearest named place is Entrance, a park 1.0 miles away.
What to expect
- Access
- Yes
How to reach it
Coordinates33.75918, -116.74486
Named places within 25 miles
Parks
- Entrance: 1.0 mi
- Idy Park: 2.1 mi
- Humber Park: 3.4 mi
- Black Mountain Scenic Area: 4.8 mi
- Church Bowl: 6.5 mi
Peaks
- Inspiration Point: 2.3 mi
- Fisherman Point: 2.3 mi
- Suicide Rock: 2.8 mi
- Indian Mountain: 3.0 mi
- Lily Rock: 3.5 mi
Springs
- Halfway Sprig: 2.7 mi
- South Ridge Spring: 3.1 mi
- Granite Spring: 3.2 mi
- fawn spring: 3.2 mi
- Big Cedar Spring: 3.3 mi
Attractions: 41
- Hurkey Creek: 5.5 mi
- Archery: 6.4 mi
- Go Karts: 6.4 mi
- Mountain Biking: 6.4 mi
- Fort Outpost: 6.5 mi
Gardens: 26
- Alpenglow Lilac Gardens: 2.7 mi
- South American Region: 11.8 mi
- Moorten Botanical Garden: 11.8 mi
- African Region: 11.8 mi
- Central American Region: 11.8 mi
Museums: 24
- Idyllwild Area Historical Society: 2.1 mi
- Frey House II: 11.9 mi
- Aluminaire House: 12.1 mi
- Palm Springs Art Museum: 12.1 mi
- Ramona Bowl Museum: 12.1 mi
Nature reserves: 18
- Idyllwild Nature Center: 1.4 mi
- James San Jacinto Mountains Reserve: 3.9 mi
- UC James San Jacinto Montain Reserve: 3.9 mi
- Hidden Divide Natural Preserve: 6.5 mi
- Valley Hi Oak Park: 9.3 mi
Historic sites: 17
- mine: 1.4 mi
- Sawmill Flats: 1.7 mi
- Tong wen neval: 11.2 mi
- Juan Diego Flats: 11.9 mi
- Shiprock: 12.3 mi
Artworks: 16
- Dinny: 11.2 mi
- Mr. Rex: 11.3 mi
- Forever Marilyn: 12.1 mi
- Isabelle: 12.2 mi
- The Rainmaker: 12.4 mi
Waterfalls: 9
- Fuller Mill Creek Falls: 3.0 mi
- Andreas Falls: 7.3 mi
- Tahquitz Falls: 10.9 mi
- Dry Falls: 11.1 mi
- Seven Sisters Waterfall: 11.1 mi
Picnic sites: 7
- Lake Fulmor Picnic Area: 3.8 mi
- Lake Hemet Picnic Area: 6.8 mi
- Bent Palm Picnic Area: 11.3 mi
- Mission Creek Preserve: 19.0 mi
- Delos Bench: 19.1 mi
Rest areas: 3
- Whitewater Adobe Rest Area: 12.2 mi
- Whitewater Rest Area: 12.2 mi
- Brookside Rest Area: 20.9 mi
Cliffs: 2
- Oak Cliff: 4.1 mi
- Dry Falls: 11.1 mi
Beaches: 1
- Morongo's Oasis Beach: 11.7 mi
Ghost towns: 1
- Leon: 22.7 mi
Summits around it
The highest named summits within 15.3 miles of Speed of Light Experiment. Elevation from each summit’s own record; bearing measured between the two coordinates.
| Summit | Bearing | Elevation | Distance |
|---|---|---|---|
| San Jacinto Peak | NE 44° | 3,288 m | 5.4 mi |
| Jean Peak | NE 49° | 3,202 m | 5.0 mi |
| Folly Peak | NE 40° | 3,195 m | 5.4 mi |
| Marion Mountain | NE 53° | 3,150 m | 4.2 mi |
| Miller Peak | NE 47° | 3,143 m | 5.7 mi |
| Newton Drury Peak | NE 45° | 3,102 m | 4.8 mi |
| Mount Saint Ellen | NE 50° | 3,097 m | 4.1 mi |
| Cornell Peak | NE 51° | 2,928 m | 6.0 mi |
When to go
Light through the year
| Date | Sunrise | Golden hour | Sunset |
|---|---|---|---|
| March equinox | 06:51 | 18:26 | 18:59 |
| June solstice | 05:38 | 19:25 | 20:02 |
| September equinox | 06:36 | 18:12 | 18:45 |
| December solstice | 06:49 | 16:05 | 16:43 |
Local time (America/Los_Angeles).
Climate normals
Months averaging 50–80 °F: May–Oct.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg °F | 43 | 43 | 46 | 50 | 56 | 64 | 70 | 71 | 65 | 57 | 48 | 42 |
| Precip in | 4.7 | 5.3 | 3.3 | 1.7 | 0.6 | 0.1 | 0.5 | 0.6 | 0.8 | 1.2 | 1.9 | 3.6 |
1991–2020 U.S. Climate Normals, NOAA NCEI — Idyllwild Fire Dept, 2 mi away.
Where this comes from
Location and category confirmed against OpenStreetMap.
OpenStreetMapOpenStreetMap element node/13667691693
Day trips start here
- Idyllwild · 2 mi
- Palm Springs · 13 mi
- Banning · 14 mi
- Hemet · 14 mi
- Cathedral City · 16 mi
- Beaumont · 18 mi
Private beta · Free to join
Take the scenic way to Speed of Light Experiment.
Byway plans around your taste, verified places, real weather and opening hours — then opens every leg in Google Maps with one tap.