USDA Forest Service · Idaho
Grayback Campground and Group sites - reserve
USDA Forest Service · Idaho, United States
- Drinking water
- Yes
- Restrooms
- Yes
- Elevation
- 3,993 ft
- Dark sky
- Bortle class 1
- Cell coverage
- T-Mobile weak · AT&T weak · Verizon good (carriers' 4G LTE filings to the FCC, 2025-12; not measured here)
- Access road
- GRAYBACK GROUP CG (NFSR 347B) · asphalt · suitable for passenger cars
- Lake
- Boise National Forest
- Address
- ID
- Activities
- Auto Touring, Camping, Hiking, Picnicking, Wildlife Viewing
About
Grayback Campground is located 36 miles northeast of Boise, Idaho, just off scenic State Highway 21. Historic Idaho City is just two miles north of the campground. Visitors enjoy fishing in Mores Creek and exploring the Grayback Gulch Trail.
Natural Features:
The campground is situated on a hillside about a quarter-mile above State Highway 21, at an elevation of 4,200 feet. A ponderosa pine forest covers the site, offering partial shade. Wildlife and summer wildflowers are abundant in the area.
Recreation:
Mores Creek can be accessed just below the campground. Anglers fish for rainbow trout. Grayback Loop Trail begins within the site, offering a 1-mile footpath for hikers.
Numerous trail opportunities are in the area just north of Idaho City, where hiking, biking, horseback riding and off-road vehicles can be enjoyed. During the winter, the area becomes a playground for back country skiers and snowmobiles.
Weather, month by month
| Month | Typical high | Typical low | Coldest night | Hottest day | Years with a night below 32°F |
|---|---|---|---|---|---|
| January | 36° | 19° | -2° | 50° | 11 of 11 |
| February | 37° | 23° | -6° | 51° | 11 of 11 |
| March | 46° | 28° | 15° | 69° | 11 of 11 |
| April | 49° | 30° | 16° | 72° | 10 of 11 |
| May | 63° | 42° | 29° | 81° | 1 of 11 |
| June | 73° | 50° | 34° | 90° | 0 of 11 |
| July | 88° | 60° | 45° | 98° | 0 of 11 |
| August | 87° | 59° | 49° | 96° | 0 of 11 |
| September | 74° | 49° | 40° | 89° | 0 of 11 |
| October | 61° | 38° | 23° | 78° | 5 of 10 |
| November | 49° | 30° | 5° | 66° | 9 of 10 |
| December | 37° | 18° | 1° | 53° | 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
- Grayback · USDA Forest Service · 0 mi · 14 sites
- Bald Mountain Campground · USDA Forest Service · 7 mi
- Ten Mile Campground · USDA Forest Service · 10 mi · 15 sites
- Bad Bear Campground · USDA Forest Service · 10 mi · 6 sites
- Hayfork Group Cg · USDA Forest Service · 11 mi · 1 sites
All public campgrounds in Idaho · Every state and province · Facts read from the operator 2026-02-25. Confirm fees, rules and current status with the operator before you go.