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FacilityCampgroundRecreation.gov

DIMOND O

Coulterville, California · Tuolumne County · Campground

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 Tra…

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37.82500, -119.86111
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5-Day Forecast

Weather at DIMOND O

Live forecast for the park. Plan your visit accordingly.

Avg High74°F
Avg Low52°F
Peak Rain Chance0%
Humidity42%
UV (avg)8
Air Quality42 · Good
Today
☁️
Overcast
62°/42°
🌬 7mph
5:39 AM8:14 PM
Sun
☀️
Clear
70°/50°
🌬 7mph
5:39 AM8:15 PM
Mon
☁️
Overcast
75°/52°
🌬 8mph
5:38 AM8:15 PM
Tue
☁️
Overcast
80°/57°
🌬 11mph
5:38 AM8:16 PM
Wed
☁️
Overcast
81°/57°
🌬 11mph
5:38 AM8:17 PM

Forecast data © Open-Meteo. Refreshed every 6 hours. Always check the most recent forecast before heading out.

About DIMOND O

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.

How to Get There

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.

Driving directions (Google Maps) →

What to Pack for Your Stay

Tuned to the live forecast for this park.

👔 What to Wear

  • 👕
    Moisture-wicking T-shirt
    Light color, breathable.
  • 🩳
    Lightweight shorts or pants
    Quick-dry preferred — sweat dries fast.
  • 🧢
    Brimmed sun hat
    Better than a cap for back-of-neck protection.
  • 🥾
    Trail runners
    Breathable mesh uppers.

🎒 What to Pack

  • 💧
    Water
    Bring at least 1L of water; more in heat.
  • 🍫
    High-energy snacks
    A snack for the trail.
  • 🧴
    Sun protection (UV 8)
    SPF 50+ sunscreen, lip balm w/ SPF, sunglasses, sun hat.
  • 🩹
    First-aid kit
    Blister patches, ibuprofen, tape, antiseptic wipes.
  • 🗺
    Offline map
    Download your route in advance via Gaia, Caltopo, or OSM-based apps.

Recommendations adapt to the current forecast + trail stats. Use them as a starting point — local conditions, your experience, and the time of day you start all matter.

Plan Your Visit to DIMOND O

Heading to DIMOND O? A few things to know before you go:

  • Reservations: popular sites fill up fast — check Recreation.gov 6 months in advance
  • Fees: day-use and camping fees vary; check current rates on the official park page
  • Trash & pack-out: follow Leave No Trace principles
  • Wildlife: store food in bear boxes where provided; never feed wildlife
  • Weather: the 5-day forecast above is updated every 6 hours; verify just before you go

Frequently Asked Questions

Do I need a reservation for DIMOND O?

No central reservation system listed for DIMOND O. Check the official page (https://www.recreation.gov/camping/campgrounds/233772) for the latest entry policy and availability.

How do I get to DIMOND O?

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.

How do I contact DIMOND O?

You can reach the park at phone: 209-379-2258 or email: Help.Stanislaus.Groveland@AmericanLL.com.