USDA Forest Service · California
Sycamore Flat Campground
USDA Forest Service · California, United States · in San Gabriel Mountains National Monument
- Cost
- Overnight Use: Single Site: $20 per night Day Use: $20 per vehicle per day
- Drinking water
- Yes
- Restrooms
- Yes
- Elevation
- 4,390 ft
- Dark sky
- Bortle class 4
- Cell coverage
- AT&T weak · T-Mobile none · Verizon none (carriers' 4G LTE filings to the FCC, 2025-12; not measured here)
- Access road
- SYCAMORE CG (NFSR 4N11C0) · native material · suitable for passenger cars
About
US Forest Service campground. This site not regularly maintained. Campground. Not reservable through Recreation.gov, so plan on first-come, first-served; check with the ranger district for current conditions and fees.
Weather, month by month
| Month | Typical high | Typical low | Coldest night | Hottest day | Years with a night below 32°F |
|---|---|---|---|---|---|
| January | 57° | 42° | 28° | 74° | 3 of 11 |
| February | 56° | 40° | 25° | 77° | 4 of 11 |
| March | 58° | 42° | 27° | 87° | 3 of 11 |
| April | 66° | 46° | 34° | 82° | 0 of 11 |
| May | 75° | 51° | 38° | 90° | 0 of 11 |
| June | 87° | 60° | 45° | 103° | 0 of 11 |
| July | 92° | 68° | 57° | 102° | 0 of 11 |
| August | 91° | 67° | 58° | 102° | 0 of 11 |
| September | 84° | 62° | 51° | 94° | 0 of 11 |
| October | 77° | 55° | 41° | 89° | 0 of 10 |
| November | 68° | 50° | 33° | 80° | 0 of 10 |
| December | 59° | 42° | 30° | 73° | 2 of 10 |
Mid-month figures from 2016–2026 of daily weather at this spot (ERA5 reanalysis via Open-Meteo, CC BY 4.0), in °F. Typical is the median; coldest and hottest are the extremes seen.
Nearby campgrounds
- Sycamore Flat Campground · USDA Forest Service · 0 mi · 12 sites
- Southfork Campground · USDA Forest Service · 1 mi
- Big Rock Campground · USDA Forest Service · 3 mi
- Jackson Flats · USDA Forest Service · 4 mi · 5 sites
- Little Jimmy Campground · USDA Forest Service · 5 mi
All public campgrounds in California · Every state and province · Facts read from the operator 2026-09-01. Confirm fees, rules and current status with the operator before you go.