Lone Rock Campground
Union Valley Reservoir

Union Valley Reservoir, Crystal Basin, Eldorado National Forest, CA
Union Valley Reservoir, Crystal Basin, Eldorado National Forest, CA

Lone Rock Campground
Union Valley Reservoir


Lone Rock Campground

Lone Rock Campground is a boat-in, walk-in, or bike-in campground located on the southeastern side of Union Valley Reservoir in the Crystal Basin region of the Eldorado National Forest.

Access to Lone Rock Campground can be by foot or bike from either Jones Fork parking lot (0.3 miles) or Sunset Boat Launch Ramp (0.7 miles). The campground has only 5 sites on a point of land. There is a bike rack at the campground. A paved bike trail connects with many of the other facilities along the shore of the lake. Fishing is good from the campground's point.

No potable water is available at Lone Rock Campground. Amenities include vault toilets.

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Lone Rock Campground Basics
Lone Rock Campground Location: Southeast shore of Union Valley Reservoir, 13 miles north on Ice House Road off Highway 50
Elevation: 4,900 feet
Miles/Driving time: Sacramento - 79 miles, 1:40
Campground Open: Late-May through October
Number of Sites: 5
Max. People per Site: 6 (including children)
Vehicles per Site: 1 ($7 for extra vehicle)
Pets: On leash, always attended
Operated by Eldorado National Forest
Placerville Ranger District: (530) 644-2324

Reservations
No Reservations All campsites at Lone Rock Campground are first-come, first-served.
Accessible Sites: None designated
Fees: None
Check-in, check-out: 2:00 PM, 1:00 PM

Lone Rock Campground Amenities
Campsites: Picnic table, fire ring, food locker, bike rack
Campground: Vault toilets, no potable water
Showers: No
Dump Station: Yellowjacket Campground
Campground Map: Lone Rock Campground Map
Attractions near Lone Rock Campground:
  • Enjoy Union Valley Reservoir with fishing, boating, and water skiing.
  • Ride or hike on the paved Bike Trail.
  • Take the trail to summit of Two Peaks for great view of Union Valley.
  • Follow the Bassi Falls Hiking Trail.
  • Spend a day at Ice House Reservoir or Loon Lake.




General Camping Information

When making reservations be sure that your vehicle will fit in the space indicated on the reservations website. Information is available at the Crystal Information Station east of Union Valley Reservoir on Ice House Road during the summer.
Horses and motor vehicles are not permitted on the bike trails at Union Valley Reservoir. Horses are permitted on the Ice House Reservoir bike trail.
For campground purposes, a vehicle is any equipment that is required to be licensed/registered. This includes RVs, trailers, cars/trucks, boat/car trailer, motorcycle/atv, etc. Vehicles parked in a truck or on a trailer are not counted separately.


map of campgrounds at Unioin Valley Reservoir, including Azalea Cove Campground, Eldorado National Forest, CA

Key Lone Rock Campground Regulations

  1. Campers must pack out their trash.
  2. To avoid problems with bears, please store all foods, soap, and garbage in bear boxes.
  3. Keep dogs on leash and attended at all times.
  4. Fires are only permitted in provided fire rings.
  5. To avoid the spread of invasive pests, obtain firewood locally.

Check Eldorado National Forest - Lone Rock Campground for any campground updates.

Lone Rock Campground, Union Valley Reservoir, CA

Lone Rock Campground

Eldorado National Forest Attractions

Campers at Lone Rock Campground at Union Valley Reservoir in the Eldorado National Forest find some wonderful outdoor adventures nearby.

  • Enjoy boating and water skiing on Crystal Basin lakes.
  • Try mountain biking along the network of logging roads.
  • Take advantage of the bike trail around Union Valley Reservoir.
  • Try fishing in all the lakes and streams in the Crystal Basin.
  • Set out on a hike into the Desolation Wilderness.
  • Take in the scenery of waterfalls, snow-capped peaks, and rushing mountain streams.

Set Out on Adventure

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Places to Visit

  • Visit historic Placerville and tour Gold Rush era buildings.
  • Explore the Crystal Basin, including stunningly beautiful Wrights Lake.
  • Drive up Highway 50 to Strawberry and Lovers' Leap rock.
  • Visit ski resorts and snow play areas along with cross country ski trails
  • Spend the day high on Echo Summit at Echo Lakes.