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Union Flat

FSU.S. Forest Service — Nevada City · California · Tahoe National Forest

AgencyFSU.S. Forest Service
AreaTahoe National Forest
LocationNevada City · California · Tahoe National Forest · 39.56807, -120.74498 · Map
Sites11 public sites counted from the federal listing — 7 standard nonelectric; 3 tent only nonelectric; 1 walk to
Getting a siteReservable — the federal listing marks this campground as taking reservations. Some sites or seasons may still be first-come; the listing’s own words are below.
HookupsElectric at 0 of 11 sites
Water hookups at 0 of 11 sites
Sewer hookups at 0 of 11 sites
Full hookups (all three at one site) at 0 of 11 sites
Counted site by site from affirmative reports in the federal record. A site with no report is not counted either way.
Max RV lengthLongest reported site fits 50 ft
Sites that fit at least — 25 ft: 7 sites · 30 ft: 4 sites · 35 ft: 3 sites · 40 ft: 2 sites
Months openNot in federal data — the federal listing does not publish a season for this campground. Check the official description below or Recreation.gov.
FeesNot reported — the federal listing carries no fee description for this campground.
Check-in / outIn 2:00 PM · Out 12:00 PM (most common in the listing)
PetsAllowed at 11 sites, as reported
AccessibilityN
Phone(530)478-6253

Check availability & book on Recreation.gov →

This site takes no reservations and shows no live availability. Source: Recreation.gov (RIDB export pulled November 5, 2026); this listing was last updated in the federal record on 2026-03-11.

From the official listing

Overview Union Flat Campground is located on the North Yuba River, near Highway 49. Visitors enjoy a wide variety of recreational activities in the area, including hiking, hunting, fishing, canoeing and gold panning. Recreation The North Yuba River offers swimming, wading and rainbow trout fishing. Seasonal rafting, tubing and kayaking is available. Facilities The campground offers several single-family campsites and one double site. Some sites are designated for tent camping only. Each site is equipped with a picnic table and campfire ring. Vault toilets are provided. Natural Features The campground stretches along the north bank of the North Yuba River. A tumbled rock wall from early gold dredging activity separates campsites from the river. A forest of pine, fir, maple and oak trees covers the area, offering shade in many sites. Contact Info This location is unstaffed. To speak with our main office for general information, please call: (530) 265-4531. Nearby Attractions Union Flat Campground is located on the Yuba Donner Scenic Byway (Highway 49) near many gold rush era historical sites and old mining towns such as Goodyears Bar, Sierra City, and Downieville. Many points of interest lie along Highway 49 and are part of the 49 miles of Highway 49 driving tour; look for interpretive signs and other historical sites along this tour route. Gold Lakes Basin offers boating, fishing, biking, and hiking. Boating, fishing and swimming are available at nearby Sardine Lakes, about 14 miles east of the campground. Sardine Lakes Resort offers boat rentals, lodging, and a restaurant. On the water, visitors enjoy boating and fishing. Anglers will find rainbow and brook trout in many of the lakes, streams, and rivers throughout the basin. Over 30 miles of maintained trails for hiking, mountain biking, and motorcycle singletrack branch out across the area and the Pacific Crest Trail can be accessed at a few spots east of Sierra City and in the Gold Lakes Basin area. The historic towns of Sierra City and Downieville offer historic and cultural attractions, restaurants, shops, churches, and vistor information. Charges & Cancellations No Show Policy

A no-show customer is one who does not arrive at a campground and does not cancel the reservation by check-out time on the day after the scheduled arrival date (or for day-use facilities, by check-in time the day of arrival). 

* No-show customers are only recorded at staffed facilities. At most remote facilities, all customers are noted as automatically checked-in on the date of arrival.

* It is recommended that staffed facilities hold a campsite until check-out time on the day following the arrival date.

* It is recommended that staffed facilities hold group day-use facilities until check-in time on the arrival date.

There is no change fee if a customer extends or shortens a reservation if the change includes dates from the original reservation. If they choose to depart early, they may forfeit some or all of the recreation fees. 

There is no change fee if the customer changes campsites that are the same price and on the same reservation dates in the same campground. If the campsite the customer is changing to has a price difference, the customer will be responsible for any additional fees or be provided with a refund, based on the price difference. 

Where recorded, no-show customers are assessed a $20.00 no-show fee and forfeit the first night's recreation fee for a campsite or forfeit the entire day-use recreation fee for a day-use facility. We recommend customers contact the facility if they are en route to their reservation but cannot make it by the check-in date. In these cases, no refund will be issued, but the facility can ensure that a "no-show" fee is not assessed.

Directions, from the listing

From Downieville, take Highway 49 north about 6 miles. The campground is on the right side of the highway.

Nearest federal campgrounds

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FSU.S. Forest ServiceDiablo
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FSU.S. Forest ServiceWild Plum
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Trip Card — Union Flat

Nevada City · California · Tahoe National Forest

AgencyFS · U.S. Forest Service
LocationNevada City · California · Tahoe National Forest
FeesNot reported in the federal data
Getting a siteReservable
HookupsNone reported
Max RVUp to 50 ft
Months openNot in federal data
Sites11 sites

Book: recreation.gov/camping/campgrounds/234534 · Source: Recreation.gov, pulled November 5, 2026. Facility details come from federal recreation data and may be out of date — this site takes no reservations and shows no live availability; confirm details and book through Recreation.gov or the managing agency.