USDA Forest Service · California
Union West - Union Reservoir (Stanislaus NF)
USDA Forest Service · California, United States
- Sites
- 17
- Hookups
- 16 with water, 17 no hookups
- Season
- May 15 to December 15
- Max RV length
- 18 ft
- Drinking water
- Yes
- Restrooms
- Yes
- Pets
- Yes
- Elevation
- 6,906 ft
- Dark sky
- Bortle class 1
- Cell coverage
- AT&T weak · Verizon weak · T-Mobile none (carriers' 4G LTE filings to the FCC, 2025-12; not measured here)
- Access road
- NFSR 07N75C · native material · high clearance vehicles
- Lake
- Stanislaus National Forest
- Phone
- 209-795-1381
About
Overview
Union Reservoir is set in a granite basin with expansive mountain views. The reservoir has lots of small islands and is kept mostly full. The Union West campground is adjacent to the reservoir, nestled in red fir and lodgepole pine forest.
Fees
The America the Beautiful Interagency Senior and Access Passes are honored and receive 50% off the nightly rate. Only applicable to the single site the pass holder occupies. The Interagency Annual and Volunteer passes do not provide any discounts on camping.
Reservations required via Recreation.gov
Weather, month by month
| Month | Typical high | Typical low | Coldest night | Hottest day | Years with a night below 32°F |
|---|---|---|---|---|---|
| January | 41° | 24° | 3° | 57° | 11 of 11 |
| February | 39° | 22° | 6° | 55° | 11 of 11 |
| March | 40° | 25° | 7° | 66° | 11 of 11 |
| April | 46° | 27° | 2° | 60° | 11 of 11 |
| May | 59° | 34° | 17° | 73° | 9 of 11 |
| June | 70° | 44° | 26° | 86° | 2 of 11 |
| July | 81° | 53° | 42° | 90° | 0 of 11 |
| August | 79° | 52° | 46° | 90° | 0 of 11 |
| September | 71° | 46° | 35° | 80° | 0 of 11 |
| October | 63° | 37° | 22° | 78° | 7 of 10 |
| November | 48° | 31° | 9° | 68° | 8 of 10 |
| December | 40° | 24° | 0° | 61° | 10 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
- Sandy Flat - Utica Reservoir (Stanislaus NF) · USDA Forest Service · 1 mi · 12 sites
- Spicer · USDA Forest Service · 1 mi
- Spicer Group · USDA Forest Service · 2 mi
- Stanislaus River Campground · USDA Forest Service · 3 mi
- (Lake Alpine) West Shore · USDA Forest Service · 4 mi · 25 sites
All public campgrounds in California · Every state and province · Facts read from the operator 2026-06-30. Confirm fees, rules and current status with the operator before you go.