Union & Utica Reservoirs at Stanislaus National Forest, California (Guide + Reviews)
Overview
Union & Utica Reservoirs sit side-by-side off Highway 4 in the Stanislaus National Forest. These small, high-country lakes are known for non-motorized water, polished granite shorelines, and tiny islands that beg for kayak picnics. Compared with Lake Alpine and Spicer, Union/Utica feel quieter and more intimate — perfect for paddlers, photographers, and families who like short swims and lazy shoreline days.
What Campers Are Saying
Overall vibe: “Peaceful and playful.” Campers rave about the island-hopping by kayak, easy swims from smooth granite, and mellow nights with big stars. Even on busy weekends, you can tuck into a quiet cove and feel like you’ve got the lake to yourself.
Highlights
- Non-motorized lakes: calm water for SUPs, canoes, and kayaks.
- Granite playground: natural “beaches” and warm rock slabs for lounging.
- Islands & coves: short paddles to tiny picnic spots and micro-bays.
- Dark skies: excellent stargazing when the wind dies down.
Frictions to plan around
- No hookups: rustic sites; pack power/water solutions.
- Windy afternoons: paddle mornings for glassy conditions.
- Access roads: graded/dusty; go slow with trailers.
- Mosquitoes: early summer near inlets — bring repellent.
Camper Quotes
“Best beginner paddle spot in the Sierra — short, safe crossings to islands.”
“Granite ‘beaches’ were perfect for lazy swim days.”
“Quiet at night, unreal stars, and sunrise coffee on warm rock.”
“Less crowded than Lake Alpine — felt like our own lake.”
Campsites & Amenities
- Union Reservoir: simple forested camps near the shore; vault toilets, picnic tables, fire rings. Potable water may be seasonal — bring extra or a filter.
- Utica Reservoir: primitive shoreline camping and day-use areas; vault toilets at popular access points.
- Hookups: none (dry camping).
- Water access: hand-launch ramps and short carry-downs to the lake.
Booking & Availability
Reservations/Access: Union Reservoir campgrounds are typically reservable on Recreation.gov during the main season; Utica areas are more primitive with mixed first-come availability. Seasons vary with snow and road conditions.
Tip: For summer weekends, book Union early. If sites are full, midweek or shoulder season (Sept) brings calmer water and easier pickings.
Best Spots
- Union – lakeside loop: shortest carries to the water; dawn paddles are effortless.
- Union – back loop pines: quieter, with afternoon shade for hammocks.
- Utica – granite points: day-use coves that feel private once you paddle 2–5 minutes.
Bring sturdy sandals — granite shelves can be slick, and carry-downs are short but uneven.
Nearby Campgrounds
- Lake Alpine Campground: family-friendly loops, marina/store, easy shoreline walks.
- Spicer Reservoir Campground: larger lake vibe with islands and longer paddles.
- Calaveras Big Trees SP: sequoias down the hill for a shade day and picnic.
Map & Directions
From Arnold, continue east on Highway 4 toward Lake Alpine. Follow signed forest roads to Union and Utica access points. Final miles are graded/dusty; drive slowly and watch for paddlers and kids near the water.
Addresses (nearby): Union & Utica Reservoirs, Bear Valley / Lake Alpine area, CA 95223
Union & Utica FAQ
Are there hookups?
No. Expect rustic/dry camping with vault toilets.
Are campfires allowed?
Yes, in designated fire rings when no restrictions are active. Always check current fire rules before you go.
Is it family-friendly?
Very — short paddles to islands, warm granite for picnics, and plenty of coves with gentle entries.
When’s the best time to visit?
June–September. Mornings are glassy; late afternoon winds are common.
Are dogs allowed?
Yes, leashed in campground/day-use areas. Many dogs love the easy swim entries.
Can I swim or boat?
Yes — these lakes shine for swimming, SUPs, and canoes. Non-motorized by design.
What are the chances I’ll see Bigfoot?
He’s rumored to sun on a private granite island and paddle at dawn to avoid selfies 👣🛶.
