Sierra Nevada's Hidden High-Country Lake
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Why Rent On Union Valley Reservoir
Union Valley Reservoir sits at 4,870 feet in El Dorado National Forest, about 20 miles northeast of Placerville. Formed in 1963 by Union Valley Dam on Silver Creek, this 277,000 acre-foot reservoir is part of the Upper American River Project and surrounded by dense Sierra pine forest with the kind of undeveloped shoreline character that is increasingly rare in California. The lake receives water from multiple mountain sources, including Ice House Reservoir and Loon Lake, giving it a consistently high water quality that paddlers, anglers, and swimmers deeply appreciate.
Placerville as Your Base, the Forest as Your Home
Vacation rentals and cabin stays in the El Dorado County foothills give families easy access to Union Valley Reservoir while keeping them close enough to Placerville’s amenities to make a multi-night trip thoroughly comfortable. A full kitchen, real bedrooms, and outdoor space make a foothill rental far more practical than tent camping when you have a larger group or family members who prefer genuine comfort at the end of an outdoor day. The drive up through the El Dorado National Forest to the lake is scenic enough to be part of the experience.
Fish, Boat, Camp, and Hike
Trout fishing and bass angling are both productive at Union Valley Reservoir, and the lake’s relatively low traffic keeps the fishing pressure at levels that reward patient anglers with consistent results. Boating and kayaking are popular across the open water, and the campgrounds at Wench Creek and Fashoda offer lakeside sites for those who want to supplement a rental stay with a night or two right on the water. Hiking trails connecting to the Ice House and Loon Lake areas give the surrounding terrain genuine multi-day hiking potential.
Part of a Remarkable Lake Chain
Union Valley Reservoir is connected through the El Dorado National Forest to both Ice House Reservoir to the south and Loon Lake to the north, creating a linked lake chain that rewards families who want to explore multiple high-country lakes from a single base. A rest day from Union Valley spent driving the forest roads to Ice House or Loon Lake adds remarkable variety to any stay, and the contrast between the three lakes’ characters is genuinely interesting.
Desolation Wilderness and the Sierra Crest
The broader El Dorado National Forest around Union Valley Reservoir borders Desolation Wilderness, one of California’s most beloved wilderness areas and a world-class destination for day hiking and overnight backpacking. For families who want to combine a comfortable lakeside rental stay with genuine wilderness access, the Union Valley area provides this combination more conveniently than almost anywhere else in the Sierra. The right cabin, a cooler stocked for the week, and a few days on this underrated lake is a California mountain vacation that delivers at the highest level.
- Surface area (mi)
- 7.33
- Max depth (ft)
- 359.91
- Elevation (ft)
- 4855.64
- Shoreline length (mi)
- 343.25
Popular activities
- Boating
- Kayaking
- Swimming
- Fishing
- Hiking
- Ice Skating
- Cross-country Skiing
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Marinas on Union Valley Reservoir
Nearby lakes
Frequently Asked Questions
Ready to dive into what Union Valley Reservoir has to offer? Let’s tackle some of the burning questions you might have as you plan your visit!
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Yes, swimming is allowed in Union Valley Reservoir. There is a swimming beach onsite, and swimming and paddleboarding are popular activities to cool off and enjoy the reservoir.
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Union Valley Reservoir is a popular destination because it offers a wide range of activities. It provides opportunities for boating, water skiing, swimming, and fishing for trout and salmon. The reservoir also has hiking and biking trails, including the 4.8-mile Union Valley Bike Trail and the Bassi Falls Hiking Trail.
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For Union Valley Reservoir in California, fishing regulations and bag limits are not explicitly stated, but anglers must check the Department of Fish and Wildlife website for current regulations due to fluctuating water levels. Ice fishing is not recommended, and artificial lures with barbless hooks may be required in some areas.
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The beach at Sunset Campground is best for families. It has a large sandy beach and easy access to the lake, making it ideal for swimming, kayaking, and paddleboarding. The campground also offers amenities like picnic tables, fire rings, and showers nearby.
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Union Valley Reservoir is near the towns of Pollock Pines, Camino, and Grizzly Flats. These towns are located in El Dorado County, California, with Pollock Pines being about 12.4 miles southwest of the reservoir.