USDA Forest Service · Idaho
Black Rock
USDA Forest Service · Idaho, United States
- Sites
- 11
- Hookups
- 11 with water, 11 no hookups
- Season
- May 21 to September 26
- Max RV length
- 99 ft
- Drinking water
- Yes
- Restrooms
- Yes
- Pets
- Yes
- Elevation
- 4,035 ft
- Dark sky
- Bortle class 1
- Cell coverage
- T-Mobile none · AT&T none · Verizon none (carriers' 4G LTE filings to the FCC, 2025-12; not measured here)
- Access road
- NORTH FORK BOISE RIVER (NFSR 327) · native material · suitable for passenger cars
- Lake
- Boise National Forest
- Nearest town
- IDAHO CITY
- Address
- P.O. BOX 129, IDAHO CITY, ID, 83631
- Phone
- 208-392-6681
- Activities
- Camping, Fishing, Hiking, Mountain Biking, Swimming, Wildlife Viewing
11 numbered sites are mapped one by one - open the site map to pick yours.
About
Overview
Black Rock Campground is located approximately 20 miles from Idaho City, on the North Fork Boise River, at an elevation of 4,300 feet. Visitors enjoy fishing, swimming and exploring local trails.
Recreation
The North Fork Boise River offers rainbow trout fishing in a beautiful natural setting. Many swimming holes can be found within a short distance of the campground.
Numerous trail opportunities for hiking, mountain biking, horseback riding and dirt biking can be found in the vicinity.
Facilities
The campground contains 11 single campsites, each equipped with a picnic table, campfire ring, and lantern hook. Vault toilets, and drinking water are provided within the campground. Roads and parking spurs are dirt. Garbage Collection is not provided.
Natural Features
The campground sits on the banks of the North Fork Boise River, where Ponderosa Pines tower over the area. Most campsites have partial shade, but little privacy from other campers. A variety of wildlife makes its home around the campground.
Contact Info
This location is unstaffed. To speak with our main office for general information, please call: (208) 392-3700.
Weather, month by month
| Month | Typical high | Typical low | Coldest night | Hottest day | Years with a night below 32°F |
|---|---|---|---|---|---|
| January | 36° | 19° | 0° | 49° | 11 of 11 |
| February | 37° | 22° | -3° | 49° | 11 of 11 |
| March | 45° | 29° | 14° | 66° | 11 of 11 |
| April | 49° | 29° | 16° | 70° | 11 of 11 |
| May | 62° | 39° | 24° | 79° | 3 of 11 |
| June | 74° | 48° | 34° | 90° | 0 of 11 |
| July | 88° | 58° | 43° | 98° | 0 of 11 |
| August | 88° | 58° | 47° | 97° | 0 of 11 |
| September | 75° | 48° | 39° | 88° | 0 of 11 |
| October | 60° | 36° | 18° | 78° | 7 of 10 |
| November | 49° | 30° | -2° | 67° | 9 of 10 |
| December | 37° | 16° | 2° | 52° | 10 of 10 |
Mid-month figures from 2016–2026 of daily weather at this spot (ERA5 reanalysis via Open-Meteo, CC BY 4.0), in °F. Typical is the median; coldest and hottest are the extremes seen.
Nearby campgrounds
- Ninemeyer Campground · USDA Forest Service · 3 mi
- Barber Flat Cabin (Boise National Forest, ID) · USDA Forest Service · 3 mi · 1 sites
- Troutdale Campground · USDA Forest Service · 6 mi
- Bald Mountain Campground · USDA Forest Service · 8 mi
- Bad Bear Campground · USDA Forest Service · 9 mi · 6 sites
All public campgrounds in Idaho · Every state and province · Facts read from the operator 2026-03-11. Confirm fees, rules and current status with the operator before you go.