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.
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.
Verified facts
RIDB / Recreation.gov official databaseAmenities
RIDB /facilities /campsites · owner-verifiedStraight talk
CamperWatch intel · curated from camper reportsKnown issues, each with the workaround. Read before you book.
Insider tips & when to go
CamperWatch intel · hand-curated entryBook 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
Campground operates seasonally May through October only
Things to do nearby
RIDB /activities /recareas + intelConditions today
LiveCell signal
FCC BDC · quarterly datasetFCC maps are theoretical — camper reports confirm signal.
Wildlife nearby
iNaturalist · research-grade · 8 kmLocation
Leaflet · OpenStreetMap tiles
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 APICommunity
#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, speakableHow much does Black Rock cost per night?+
What season is Black Rock open?+
Does Black Rock have hookups?+
What is the maximum RV length at Black Rock?+
How do I make reservations at Black Rock?+
What is the cell service like at Black Rock?+
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●Data sources on this page
CamperWatch never fabricates data. Where data is unavailable, it is not shown.
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