Black Rock

Boise National Forest — riverside, fishing, hiking

Location: IDAHO CITY, ID, ID

Price: From $20 per night

Rating: 4.4 out of 5 (49 reviews)

Season: May through October

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. The campground sits on the banks of the North Fork Boise River, where Ponderosa Pines tower over the area.

Cell coverage (FCC estimate): none signal. Actual signal may vary in remote areas.

Amenities: Fire Rings, Picnic Tables, Vault Toilets, Drinking Water, Fishing

Availability alerts: Set a free cancellation alert at camperwatch.org/campground/black-rock to be notified when sites open up.

Black Rock Campground offers excellent fishing for rainbow trout on the North Fork Boise River with numerous swimming holes and extensive trail opportunities for hiking, mountain biking, and horseback riding. Located at 4,300 feet elevation in a beautiful natural setting approximately 20 miles from Idaho City.

Wildlife alert: Great Basin Rattlesnake present in area; also Bald Eagle, Spotted Sandpiper, and various small mammals and lizards observed within 8km

Insider tips for Black Rock: Book early as this is a federal campground with only 11 sites Bring a self-contained RV as there are no hookups available Access via State Highway 21 north from Idaho City, then 18 miles east on Road No. 327

Skip Black Rock if: You need RV hookups - none available at most sites. You're visiting outside May-October seasonal window. You prefer larger campgrounds - only 11 sites total.

Best time to visit Black Rock: May-October — Campground operates seasonally May through October only.

Nearby campgrounds: Barber Flat Cabin (Boise National Forest, Id) (IDAHO CITY, ID), Ten Mile Campground (Idaho City, ID), Bad Bear Campground (Idaho City, ID), Beaver Creek Cabin (Id) (IDAHO CITY, ID).

Cell Phone Coverage at Black Rock

Cell signal at Black Rock (IDAHO CITY, ID): none overall signal based on FCC broadband data.

Coverage data source: FCC Broadband Data Collection (BDC). Actual signal may vary due to terrain, tree cover, and distance from towers. Camper reports are more reliable than coverage maps in remote areas.

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Boise National Forest — riverside, fishing, hikingLive availability via Recreation.gov· synced every 30 min

Black Rock

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IDAHO CITY, ID, ID★ 4.4 (49 reviews)From $20/nightFederal campground · book on Recreation.gov
On this page ↓OverviewConditionsPlan Your TripCommunity

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. The campground sits on the banks of the North Fork Boise River, where Ponderosa Pines tower over the area.

Best for:AnglersHikersWildlife watchersFamiliesSites:TentRV
LIVE · weather + fire + AQI + availability + wildlife

Verified facts

RIDB / Recreation.gov official database
Check-in2:00 PM
Check-out12:00 PM
SeasonMay through October
Stay limit14 days
Max RV99 ft
HookupsNo hookups. Suitable for self-contained RVs.
PetsAllowed
CampfiresAllowed
Max/site6 people

Amenities

RIDB /facilities /campsites · owner-verified
Essentials
Fire RingsDrinking Water
Recreation
Picnic TablesFishing
Family & Pets
Vault Toilets

Straight talk

CamperWatch intel · curated from camper reports

Known issues, each with the workaround. Read before you book.

Known issuesFederal campground — book early. No hookups at most sites. Seasonal operations.
Skip it if:✕ You need RV hookups - none available at most sites✕ You're visiting outside May-October seasonal window✕ You prefer larger campgrounds - only 11 sites total

Insider tips & when to go

CamperWatch intel · hand-curated entry

Book early as this is a federal campground with only 11 sites

Bring a self-contained RV as there are no hookups available

Access via State Highway 21 north from Idaho City, then 18 miles east on Road No. 327

Best: May-October

Campground operates seasonally May through October only

Things to do nearby

RIDB /activities /recareas + intel

Conditions today

Live
at campground coordinates

Cell signal

FCC BDC · quarterly dataset
T-Mobile
4G · 0%
Verizon
4G · 0%
AT&T
4G · 0%

FCC maps are theoretical — camper reports confirm signal.

Wildlife nearby

iNaturalist · research-grade · 8 km
Alert: Great Basin Rattlesnake present in area; also Bald Eagle, Spotted Sandpiper, and various small mammals and lizards observed within 8km

Location

Leaflet · OpenStreetMap tiles
Open in OpenStreetMap ↗
208-392-6681· Boise National Forest
Getting there →

From Idaho City, travel north on State Highway 21 for about two miles, to the Granite Creek/Rabbit Creek Road No. 327. Turn right and travel east for 18 miles on Road No. 327, to the campground. Be advised- FS road 327 is a dirt road that is only graded a couple of times a year. It can get very rough with washboarding and potholes.

Campground entrance

Google Maps API

Community

#community · posts, photos & Q&A · AI-moderated (Claude Vision)

Pro tips

  • Book on recreation.gov exactly 6 months ahead at 10am ET — Boise National Forest fills fast in peak season.
  • Check current road conditions at Boise National Forest before arrival — seasonal closures common.

Frequently asked questions

RIDB facts + intel · FAQPage schema, speakable
How much does Black Rock cost per night?+
Black Rock costs $20 per night. Hookup options: No hookups. Suitable for self-contained RVs.
What season is Black Rock open?+
Black Rock is open May through October. Check-in is 2:00 PM, check-out is 12:00 PM.
Does Black Rock have hookups?+
No hookups. Suitable for self-contained RVs.
What is the maximum RV length at Black Rock?+
Black Rock can accommodate RVs up to 99 feet.
How do I make reservations at Black Rock?+
Black Rock is a federal campground — book 6 months ahead at Recreation.gov. Set a free CamperWatch cancellation alert to be notified the moment a site opens.
What is the cell service like at Black Rock?+
According to FCC coverage maps, cell signal at Black Rock is rated none. FCC maps show theoretical coverage — actual signal in remote or heavily forested areas may be weaker.
What season is Black Rock open, and what are check-in times?+
Black Rock is open May through October. Check-in is 2:00 PM, check-out is 12:00 PM.

Official resources

Idaho City Ranger District InformationBoise National Forest Alerts and Notices
Compare campgroundsPlan a multi-stop trip
●Data sources on this page
Recreation.gov — Live site availability — updated every 30 min
recreation.gov · RIDB API
National Weather Service — Live hourly forecast + active alerts
api.weather.gov · open-meteo.com
Google Air Quality API — Live AQI at exact campground coordinates
airquality.googleapis.com
iNaturalist — Research-grade wildlife within 8km
api.inaturalist.org
Google Pollen API — Today’s tree, grass & weed pollen forecast
pollen.googleapis.com
FCC Broadband Map — Verizon, AT&T, T-Mobile 4G/5G coverage data
broadbandmap.fcc.gov · quarterly
Sunrise-Sunset.org — Sunrise, sunset & golden hour for today
api.sunrise-sunset.org
Google Street View — Campground entrance & access road imagery
maps.googleapis.com
RIDB — ADA sites, hookups, toilets, pets, campfire rules, bear boxes, max RV, activities, contact, directions
ridb.recreation.gov · /facilities /campsites /activities /links /recareas

CamperWatch never fabricates data. Where data is unavailable, it is not shown.

$20 /night★ 4.4 (49)
SeasonMay through October
Check-in2:00 PM
Check-out12:00 PM
Reserve on Recreation.gov ↗
Dates full? Get an availability alert
FAQ
How much does Black Rock cost per night?+
What season is Black Rock open?+
Does Black Rock have hookups?+
All 7 questions →

Nearby Campgrounds

Barber Flat Cabin (Boise National Forest, Id)

IDAHO CITY, ID

From $80/night

Ten Mile Campground

Idaho City, ID

From $20/night

Bad Bear Campground

Idaho City, ID

From $20/night

Beaver Creek Cabin (Id)

IDAHO CITY, ID

From $80/night

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