Pick a site on the map to see its availability calendar.
Only 2 openings in the last 90 days: not enough recent activity for a reliable pattern. A free Campsite Sniper alert watches around the clock instead, and pings you the moment one opens.
Of the 91 tracked site-nights (Sep 18 – Sep 30, 2026): 29 open for online reservation · 29 reserved · 33 on sites not offered for online reservation (first-come, first-served or administrative).
Of the open site-nights on mapped sites, 21 fall on weekdays and 8 on weekends (Fri–Sun).
September holds the most room. 29 of 91 site-nights are still open there.
| Window | Night | Sites open | Status |
|---|---|---|---|
| Labor Day | SAT Sep 5 | 0 | None open |
| SUN Sep 6 | 0 | None open | |
| MON Sep 7 | 0 | None open |
Labor Day: no online availability on any tracked night.
| Site | Open site-nights |
|---|---|
| 17 | 5 |
| LOPA | 5 |
| 15 | 4 |
| 18 | 4 |
| LOPB | 4 |
The 5 sites with the most open site-nights in the current snapshot. Pair a bookable date with a free alert to cover everything else.
The next bookable night is Sep 25; the first open weekend starts Sep 25. Campsite Sniper can watch later dates for you.
Multi-night stays. 7 2-night, 7 3-night openings where a single site is free for every night, per Campsite Sniper's current snapshot — soonest Sep 26 at site LOPA.
RV length. Longest recorded site here is 30 ft. 7 sites take 25 ft.
| Site | Max RV | Hookups | Open site-nights | Longest run | Dates |
|---|---|---|---|---|---|
| 17 | 30 ft | None | 5 | 4 nights | Sep 25, Sep 27, Sep 28, Sep 29, Sep 30 |
| LOPA | 30 ft | None | 5 | 5 nights | Sep 26, Sep 27, Sep 28, Sep 29, Sep 30 |
| 15 | 30 ft | None | 4 | 4 nights | Sep 27, Sep 28, Sep 29, Sep 30 |
| 18 | 30 ft | None | 4 | 4 nights | Sep 27, Sep 28, Sep 29, Sep 30 |
| LOPB | 30 ft | None | 4 | 4 nights | Sep 27, Sep 28, Sep 29, Sep 30 |
| LOPC | 30 ft | None | 4 | 4 nights | Sep 27, Sep 28, Sep 29, Sep 30 |
| 16 | 30 ft | None | 3 | 3 nights | Sep 28, Sep 29, Sep 30 |
Porcupine Springs Campground is located along the scenic Rock Creek Road, in southern Idaho. It sits at an elevation of 6,950 feet. Visitors enjoy the area for its abundance of trails and scenic beauty.
Numerous hiking, biking, horseback riding and off-road vehicle trails begin within or near the campground, including Porcupine Springs, Ross Falls, Rim View, Pike Mountain and Third Fork trails. Fishing is popular on Rock Creek.
This large campground contains three group sites that each accommodate up to 50 and 100 people. The recently updated sites are accessible and equipped with picnic tables, grills, serving and utility tables and campfire circles. The group site on Loop C has large corrals for horses.
Several single-family campsites are available as well. Each is equipped with a picnic table, campfire ring, grill and a utility table. Additional sites not listed for reservation are available on a first-come, first-served basis. Accessible vault toilets and drinking water are provided. A campground host is located on-site. Roads and parking spurs within the campground are gravel.
The campground is situated in a scenic forest of pine and aspen trees. Summer wildflowers are vivid and abundant, and wildlife frequents the area.
From Hansen, Idaho, travel south on County Road G3 for approximately 31 miles. The road becomes Forest Road 515. Continue on FR 515 as it becomes gravel and turns into Forest Road 500. The Porcupine Springs Campground sign will be on the left.
View on Recreation.gov ↗ Get directions ↗












Reservations for Porcupine Springs are made through Recreation.gov. 29 of 91 tracked site-nights are currently open (31.9%). Campsite Sniper has also detected 2 site openings here in the last 90 days, so further dates may appear. Pick a site on the map to see its calendar, or set a free Campsite Sniper alert. You complete the reservation yourself on Recreation.gov.
No. Campsite Sniper sends alerts and direct Recreation.gov links. It never books, pays for, holds, hoards, or resells reservations.
Campsite Sniper re-checks public Recreation.gov availability for this facility every hour and republishes whenever anything changes. This facility's data last changed at Sep 18, 2026 16:19 UTC; an older timestamp means nothing has changed since that time, not that checking stopped. Always confirm final availability on Recreation.gov when you book.
Campsite Sniper detected 1 site-date opening at Porcupine Springs in the last 7 days, 2 over 30 days and 2 over the last 90.
7 three-night openings are showing, counting only runs where the SAME site is free for all three nights. The soonest starts Sep 26 at site LOPA. Confirm and book on Recreation.gov.
No RV-analyzable site here has a recorded maximum of 35 ft or more; the longest recorded is 30 ft.
September 2026, with 29 open site-nights in the current snapshot of 91.
As of the Sep 18, 2026 snapshot: the next open date is Fri, Sep 25 and the next open weekend starts Fri, Sep 25. Detected openings can add earlier dates at any time; a free Campsite Sniper alert catches those the moment they appear.
Lakefront, hookups, your RV length, weekends only - set it as picky as you want.
We run paced availability checks for Porcupine Springs. One watch covers every matching site.
When a match opens, you get a push with a Recreation.gov link so you can review and book it yourself.