Idaho / Cassia County / Sawtooth National Forest

Porcupine Springs

Closed — Closed for the season. Typically operates June through September depending on snow conditions. Individual sites in Loops A, B, C, and 4 sites in Loop D are reservable through Recreation.gov; remaining Loop D sites are first-come, first-served. Limited to 14 days within any 28-day period.

About

Porcupine Springs Campground is a developed facility located at 6,950 feet elevation in the Sawtooth National Forest, approximately 30 miles south of Twin Falls along the scenic Rock Creek Road. The campground consists of 12 individual units and 3 group sites, with group areas accommodating up to 50 or 100 people. The facility is organized into four loops: Loop A contains 4 single and 2 double sites, Loop B has 3 single sites, 3 double sites and a horseman area, Loop C features 3 single and 3 double sites, and Loop D contains 18 family units with individual water faucets. The campground serves as an excellent base for exploring the area's extensive trail network. Little Fork Trailhead, located within the campground, provides access to trails suitable for hiking, mountain biking, horseback riding, and OHV use. Additional trails accessible from the campground include Porcupine Springs, Ross Falls, Rim View, Pike Mountain, and Third Fork trails. Rock Creek offers fishing opportunities, while the surrounding pine and aspen forest provides scenic beauty and abundant summer wildflowers. Campground amenities include vault toilets, water faucets throughout the facility, picnic tables at each site, and an accessible Stock Transfer Station. A parking lot accommodates up to 8 RVs. The campground operates on a fee basis with single sites at $10/night, double sites at $14/night, and group sites at $75/night. Individual sites in Loops A, B, and C, plus 4 sites in Loop D, are reservable through Recreation.gov, while remaining Loop D sites are first-come, first-served. Group sites require reservations. A 14-day limit within any 28-day period applies.

Directions

From Twin Falls, go east 8 miles on ID 50 and US 30, then south 30 miles on Rock Creek Road. The road becomes County Road G3 and then Forest Road 515, eventually turning to gravel as Forest Road 500. The campground entrance will be on the left.

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