Connectivity
- VerizonLTESome coverageVerified by 2 campers · Oct 18, 2026
Community-reported service can change with terrain, weather, congestion, and carrier coverage.
Campground
Dimond O
Stanislaus National Forest, California
About this campground
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.
Some sites overlook the river and others are tucked among cedar and ponderosa pine trees.
The campground offers single and double-family sites, many of which are accessible.
Map
Loading map
- Latitude
- 37.825000° N
- Longitude
- 119.861111° W
Know before you arrive
Access, sites & campground features
Official facility and campsite inventory, supplemented by clearly marked community reports when the official listing does not publish the detail.
Access
- Drive-in
- Walk-inCommunity report
Site types
- Tent sites
- RV / trailer sites
- Standard campsites
- Group sitesCommunity report
Features
For campers
- Toilets
- Drinking water
- Picnic table
- FiresUse only when the current order allows flame
- ADA access
- Alcohol allowedCommunity report
- Firewood availableCommunity report
- Trash serviceCommunity report
- Pets allowedDogs are allowed in developed Forest Service recreation sites when restrained, crated or caged, or on a leash no longer than six feet. Posted site restrictions still apply.
- Reservable
For vehicles
- Parking
- Paved roads
- Pull-through sites
- Big rig friendlyPublished vehicle length up to 48 ft
- Back-in sitesCommunity report
Official campground guide
Plan with the full campground details
Facility information, site rules, booking windows, and published rates. Source snapshot checked Oct 18, 2026.
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.
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.
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.
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.
Nearby Attractions
Take a scenic drive through Yosemite to explore its legendary landscapes.
Activities & amenities
What Recreation.gov or the campground’s official source specifically lists.
Available activities
- Hiking
- Fishing
- Camping
- Climbing
- Boating
- Biking
- Canoeing
- Rock Climbing
Amenities and facility features
- Vault or pit toilets
- Potable water
- Picnic tables
- Site fire ring or grillUse only when the current order allows flame
- Pets allowedFollow the exact facility restrictions
- Accessible Fishing Dock
- Accessible Trails
- Accessible Vault Toilets
- Campfire Rings
- Drinking Water
- Grills
- Parking Area
- Paved Roads
- Self Pay Station
- Vault Toilets
Recreation sites
Published inventory grouped by site type. Individual sites can have stricter limits.
Standard Non-Electric
22 sites- Reservation type
- Site-Specific
- Equipment
- RV, Tent, Trailer
- Maximum people
- 12
- Maximum vehicles
- 2
- Maximum vehicle length
- 48 ft
- Check-in
- 2:00 PM
- Check-out
- 11:00 AM
- Accessible sites
- None flagged in site inventory
Tent Only Non-Electric
4 sites- Reservation type
- Site-Specific
- Equipment
- Tent
- Maximum people
- 6
- Maximum vehicles
- 1
- Maximum vehicle length
- 0 ft
- Check-in
- 2:00 PM
- Check-out
- 11:00 AM, 1:00 PM
- Accessible sites
- None flagged in site inventory
Site rules, inventory & rates
Facility rules, inventory procedures, and price seasons published by the official source.
Site rules
- Maximum stay
- 14 nights
- Holiday-weekend minimum
- 3 nights
- Weekend minimum
- 2 nights
- Reservation cutoff
- 4 days before arrival
- Maximum published occupancy
- 12 people per site
- Maximum published vehicles
- 2 vehicles per site
- Check-in
- 2:00 PM
- Check-out
- 11:00 AM, 1:00 PM
- Food storage
- Dimond O's official facility record checked 2026-10-16 does not publish a food-storage method; confirm the posted rule with Stanislaus National Forest.
- Fire and stove use
- Dimond O's official facility record states: Picnic tables and campfire rings are provided, as are accessible vault toilets and drinking water.
- Pets
- Dogs are allowed in developed Forest Service recreation sites when restrained, crated or caged, or on a leash no longer than six feet. Posted site restrictions still apply.
Inventory window
Recreation.gov publishes a rolling booking window. The dates below are the official snapshot captured for this catalog build.
- Currently bookable through
- Oct 13, 2026
- Next release
- Oct 26, 2026, 7:00 AM PDT
- Next book-through date
- Apr 26, 2027
- Group sites bookable through
- Oct 13, 2027
Published seasons & rates
| Season | Site type | Nightly rate | Additional person | Deposit |
|---|---|---|---|---|
| Peak SeasonApr 26, 2026 – Oct 13, 2026 | Standard Non-Electric | $38 | — | — |
| Peak SeasonApr 26, 2026 – Oct 13, 2026 | Standard Non-Electric | $76 | — | — |
| Peak SeasonApr 26, 2026 – Oct 13, 2026 | Tent Only Non-Electric | $38 | — | — |
| Peak SeasonApr 26, 2027 – Oct 13, 2027 | Standard Non-Electric | $38 | — | — |
| Peak SeasonApr 26, 2027 – Oct 13, 2027 | Standard Non-Electric | $76 | — | — |
| Peak SeasonApr 26, 2027 – Oct 13, 2027 | Tent Only Non-Electric | $38 | — | — |
| Peak SeasonApr 26, 2028 – Oct 13, 2028 | Standard Non-Electric | $38 | — | — |
| Peak SeasonApr 26, 2028 – Oct 13, 2028 | Standard Non-Electric | $76 | — | — |
| Peak SeasonApr 26, 2028 – Oct 13, 2028 | Tent Only Non-Electric | $38 | — | — |
Important facility notices
Read these with current closure and fire notices before departure.
- Be bear aware; keep all food out of sight in approved containers or locked inside your vehicle and remove all food from area after eating
- No hookups available
- This campground has first-come, first-served single family campsites. These sites and walk-ins are cash or check only (no credit cards accepted).
- An additional fee will be charged for extra vehicles
- Click here for more information on Stanislaus National Forest
- Don't Move Firewood: Protect California's forests from tree-killing pests by buying your firewood locally and burning it on-site. For more information visit firewood.ca.gov.
Getting there & contact
Official directions
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.
Facility contact
209-379-2258