Grayback Campground and Group sites - reserve


Grayback Gulch Campground

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.


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.

At a Glance

Current Conditions:
Use caution on the campground access road; while Highway 21 is paved, it is a steep, one-lane road, with sharp turns.
Operational Hours: Open May  - September
Reservations: Reservations can be HERE  at  or by calling 1-877-444-6777.
Fees This is a fee campground. Fee envelopes and a collection box are provided near the entrance.  Please bring cash or checks.  Overnight single fee: $15.00  /  Overnight double fee: $30.00 / Group use fee:  $100 - $200. The campground contains two group sites with picnic and serving tables, grills, campfire circles and paved site pads. Site A can accommodate up to 150 people and 20 vehicles, and site B can accommodate up to 100 people and 15 vehicles. Both sites can be reserved at the same time, for even larger groups.  Due to limited parking space, large groups of RVs or trailers cannot be accommodated; tent camping is encouraged.  An additional fee for extra vehicles will be collected at the campground.  Day use fees are half the single-site fee at all Idaho City campgrounds.
Closest Towns: Boise, Idaho
Information Center: Facilities:  
Several single- and double-family campsites are available as well, each equipped with a picnic table, lantern post and campfire ring with grill. Vault toilets, drinking water and trash collection are provided throughout the campground. A campground host is located directly across the road.

General Information


From Boise, Idaho, take State Highway 21 north for 36 miles.

The campground access road is located on the east side State Highway 21, between mileposts 36 and 37.

Turn right and proceed less than a mile to the campground.

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