Campground · 17 bookable sites ·
Managed by the USDA Forest Service
Stanislaus National Forest (NF) · Open Access

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.
Not recorded upstream: electric hookups, sewer hookups, fire pits, picnic tables, grills.
Check-in 2:00 PM · Check-out 12:00 PM
| Site | Loop | Type | Entry | Surface | Access | Max rig | People | |
|---|---|---|---|---|---|---|---|---|
| 1 | Union West | Standard Nonelectric | — | — | Drive In | — | 6 | 🐾 |
| 10 | Union West | Standard Nonelectric | — | — | Walk In | — | 6 | 🐾 |
| 11 | Union West | Standard Nonelectric | — | — | Drive In | — | 6 | 🐾 |
| 12 | Union West | Standard Nonelectric | — | — | Drive In | — | 6 | 🐾 |
| 13 | Union West | Standard Nonelectric | — | — | Walk In | — | 6 | 🐾 |
| 14 | Union West | Standard Nonelectric | — | — | Drive In | — | 6 | 🐾 |
| 15 | Union West | Standard Nonelectric | — | — | Drive In | — | 6 | 🐾 |
| 16 | Union West | Standard Nonelectric | — | — | Drive In | — | 6 | 🐾 |
| 17 | Union West | Standard Nonelectric | — | — | — | — | — | |
| 2 | Union West | Standard Nonelectric | — | — | Drive In | — | 6 | 🐾 |
| 3 | Union West | Standard Nonelectric | — | — | Drive In | — | 6 | 🐾 |
| 4 | Union West | Standard Nonelectric | — | — | Drive In | — | 6 | 🐾 |
| 5 | Union West | Standard Nonelectric | — | — | Drive In | — | 6 | 🐾 |
| 6 | Union West | Standard Nonelectric | — | — | Drive In | — | 6 | 🐾 |
| 7 | Union West | Standard Nonelectric | — | — | Drive In | — | 6 | 🐾 |
| 8 | Union West | Standard Nonelectric | — | — | Walk In | — | 6 | 🐾 |
| 9 | Union West | Standard Nonelectric | — | — | Walk In | — | 6 | 🐾 |
From Highway 4, turn onto Spicer Reservoir Road (paved) and go 8 miles. Turn left onto 7N75; from there the roads are gravel. Continue .7 miles to a T-intersection. Follow the Forest Service sign to Union West Campground.
Spicer Reservoir Road is 27 miles east of the Calaveras Ranger Station in Hathaway Pines, California 95233.
38.42658, -119.99850 · 38°25'35.7"N 119°59'54.6"W
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °F | — | — | — | — | — | — | — | — | — | — | — | — |
| Low °F | — | — | — | — | — | — | — | — | — | — | — | — |
| Precip in | 7.6 | 6.9 | 6.3 | 4.1 | 2.2 | 0.8 | 0.5 | 0.3 | 0.7 | 2.2 | 4.1 | 7.1 |
1991–2020 averages from the nearest NOAA station, 13.4 mi away — not measured at the facility itself, and elevation can make a real difference over that distance.
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
From Recreation.gov, which is not always current. The operator's own page is the authority on what you will be charged.


Recreation.gov last updated this record on 2026-06-30.
Facility information and photographs from Recreation.gov (RIDB). SpotOpened is not affiliated with Recreation.gov or any federal agency.
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