USDA Forest Service · California
Dimond O
USDA Forest Service · California, United States
- Sites
- 26
- Hookups
- 26 no hookups
- Season
- April 26 to October 13
- Max RV length
- 48 ft
- Drinking water
- Yes
- Restrooms
- Yes
- Pets
- Yes
- Elevation
- 4,455 ft
- Dark sky
- Bortle class 1
- Cell coverage
- Verizon weak · T-Mobile none · AT&T none (carriers' 4G LTE filings to the FCC, 2025-12; not measured here)
- Access road
- DIMOND O CAMPGROUND ROAD (NFSR 01S67Y) · asphalt · suitable for passenger cars
- Lake
- Stanislaus National Forest
- Nearest town
- GROVELAND
- Address
- 34660 EVERGREEN ROAD, GROVELAND, CA, 95321
- Phone
- 209-379-2258
- Activities
- Biking, Boating, Camping, Canoeing, Climbing, Fishing, Hiking, Rock Climbing
26 numbered sites are mapped one by one - open the site map to pick yours.
About
Overview
Dimond O is ideally located closest to Yosemite National Park's Big Oak Flat entrance and Hetch Hetchy. It's nestled near the banks of the scenic Middle Fork Toulumne River, where warm summer days can be spent wading and fly fishing in the refreshing waters.
Recreation
Nearby trails include the Carlon Falls Trail near the Carlon Day Use Area, and Yosemite National Park trails accessible from Hetch Hetchy.
The Middle Fork Toulumne River is a popular spot for swimming, wading and rainbow trout fishing.
Facilities
The campground offers single and double-family sites, many of which are accessible. Picnic tables and campfire rings are provided, as are accessible vault toilets and drinking water. Roads and parking spurs are paved. Firewood is available for a fee.
Natural Features
Some sites overlook the river and others are tucked among cedar and ponderosa pine trees. The Tuolumne River runs for about 150 miles from the central Sierra Nevada to the San Joaquin River.
Contact Info
For facility specific information, please call (801) 226-3564.
Nearby Attractions
Take a scenic drive through Yosemite to explore its legendary landscapes.
Weather, month by month
| Month | Typical high | Typical low | Coldest night | Hottest day | Years with a night below 32°F |
|---|---|---|---|---|---|
| January | 48° | 30° | 18° | 64° | 10 of 11 |
| February | 47° | 30° | 15° | 64° | 11 of 11 |
| March | 48° | 32° | 13° | 76° | 9 of 11 |
| April | 56° | 35° | 15° | 69° | 9 of 11 |
| May | 67° | 44° | 25° | 79° | 1 of 11 |
| June | 78° | 52° | 35° | 94° | 0 of 11 |
| July | 88° | 61° | 48° | 98° | 0 of 11 |
| August | 86° | 60° | 53° | 95° | 0 of 11 |
| September | 79° | 54° | 42° | 88° | 0 of 11 |
| October | 70° | 44° | 28° | 83° | 1 of 10 |
| November | 58° | 37° | 19° | 73° | 6 of 10 |
| December | 49° | 32° | 12° | 65° | 9 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
- Hodgdon Meadow Campground · National Park Service · 4 mi · 108 sites
- Spinning Wheel Campground · USDA Forest Service · 6 mi
- Crane Flat Campground · National Park Service · 7 mi · 151 sites
- Sweetwater (Stanislaus National Forest) · USDA Forest Service · 8 mi · 13 sites
- Cherry Valley · USDA Forest Service · 9 mi · 45 sites
All public campgrounds in California · Every state and province · Facts read from the operator 2026-07-15. Confirm fees, rules and current status with the operator before you go.