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Dimond O
FSU.S. Forest Service — GROVELAND · California · Stanislaus National Forest
| Agency | FSU.S. Forest Service |
|---|---|
| Area | Stanislaus National Forest |
| Location | GROVELAND · California · Stanislaus National Forest · 37.82500, -119.86111 · Map |
| Sites | 26 public sites counted from the federal listing — 22 standard nonelectric; 4 tent only nonelectric |
| Getting a site | Reservable — the federal listing marks this campground as taking reservations. Some sites or seasons may still be first-come; the listing’s own words are below. |
| Hookups | Electric at 0 of 26 sites Water hookups at 0 of 26 sites Sewer hookups at 0 of 26 sites Full hookups (all three at one site) at 0 of 26 sites Counted site by site from affirmative reports in the federal record. A site with no report is not counted either way. |
| Max RV length | Longest reported site fits 48 ft Sites that fit at least — 25 ft: 20 sites · 30 ft: 18 sites · 35 ft: 18 sites · 40 ft: 13 sites |
| Months open | Not in federal data — the federal listing does not publish a season for this campground. Check the official description below or Recreation.gov. |
| Fees | Not reported — the federal listing carries no fee description for this campground. |
| Check-in / out | In 2:00 PM · Out 11:00 AM (most common in the listing) |
| Pets | Allowed at 26 sites, as reported |
| Accessibility | N |
| Phone | 209-379-2258 |
Check availability & book on Recreation.gov →
This site takes no reservations and shows no live availability. Source: Recreation.gov (RIDB export pulled November 5, 2026); this listing was last updated in the federal record on 2026-10-15.
From the official listing
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 (209) 532-3671. Nearby Attractions Take a scenic drive through Yosemite to explore its legendary landscapes.
Directions, from the listing
From the Groveland District Office, head east 15 miles on Highway 120, then turn left on Evergreen Road and travel 4 miles. The campground is located on the left.
Nearest federal campgrounds
2 mi straight-line · Yosemite National Park CaliforniaNPSNational Park ServiceCrane Flat Campground
4 mi straight-line · Yosemite National Park CaliforniaFSU.S. Forest ServiceSweetwater (Stanislaus National Forest)
8 mi straight-line · CaliforniaNPSNational Park ServiceTamarack Flat Campground
8 mi straight-line · CaliforniaFSU.S. Forest ServiceLumsden Bridge Campground
9 mi straight-line · California
Trip Card — Dimond O
GROVELAND · California · Stanislaus National Forest
| Agency | FS · U.S. Forest Service |
|---|---|
| Location | GROVELAND · California · Stanislaus National Forest |
| Fees | Not reported in the federal data |
| Getting a site | Reservable |
| Hookups | None reported |
| Max RV | Up to 48 ft |
| Months open | Not in federal data |
| Sites | 26 sites |
Book: recreation.gov/camping/campgrounds/233772 · Source: Recreation.gov, pulled November 5, 2026. Facility details come from federal recreation data and may be out of date — this site takes no reservations and shows no live availability; confirm details and book through Recreation.gov or the managing agency.