No detected openings were recorded in the last 90 days. Campsite Sniper monitors Big Springs Grp. Area - Island Park continuously and will alert you if that changes.
Of the 13 tracked site-nights (Sep 18 – Sep 30, 2026): 13 unavailable (cause unspecified).
No online availability right now
Load status
Sep 18 – Sep 30, 2026Of the 13 tracked site-nights (Sep 18 – Sep 30, 2026): 13 unavailable (cause unspecified).
Open dates by month
Sep 2026 – Sep 2026No month in range currently shows online availability. 0 open site-nights across the tracked window — these site-nights are marked unavailable.
Holiday windows
Sites open per night · of 1 site| 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.
About Big Springs Grp. Area - Island Park
Overview
Big Springs Group Area is located 22 miles south of West Yellowstone, Montana in beautiful Island Park, Idaho at an approximate elevation of 6,300 feet. Visitors love Island Park for its world-class fishing and outstanding scenery and wildlife viewing opportunities.
Recreation
Big Springs is the headwaters of Henry's Fork and is one of the largest springs in the country. Henry's Fork is considered one of the best fly-fishing streams in the nation. Fishermen cast for rainbow and brook trout. Tubing, canoeing, kayaking and rafting are also popular on the river.
The Big Springs National Recreation Water Trail can be accessed from the campground and ends 4.5 miles away at Macks Inn. It offers a lazy three-hour float or canoe trip through beautiful scenery. Wildlife, including moose, bald eagles and Sandhill cranes, are often seen along the trail.
The charming and historic John Sack Cabin is nearby, noted for its unique location, construction and furnishings.
Hiking, biking, horseback riding and ATVing are popular activities. Many miles of trails crisscross Island Park, including the Continental Divide National Scenic Trail and the Nez Perce Trail are in the area.
Facilities
The campground provides one accessible group site that can accommodate up to 40 people, with picnic tables, a campfire circle, grill and tent pads. Accessible vault toilets, drinking water and trash collection are provided. 30-amp electricity is available for a fee. Firewood is available for purchase from the host. Roads and parking spurs are gravel.
Natural Features
Island Park is composed of two areas of extinct volcanic activity. The Henry's Fork Caldera sits inside the larger Island Park Caldera.
The area is known for its dense forests of lodgepole pine, broad grassy meadows bursting with summer wildflowers and a wide variety of wildlife, including black and grizzly bears, moose, elk, deer, bald eagles, Sandhill cranes and much, much more.
The campground is situated in a clearing surrounded by a forest of lodgepole pines. Grasses and summer wildflowers dot the landscape.
Nearby Attractions
Macks Inn is 4.5 miles west. This full-service facility offers boat rentals, rafting, shuttle service, gas, groceries, showers and laundry facilities.
Island Park Reservoir and Henry's Lake are nearby, both offering boating, water skiing, fishing, kayaking and canoeing. Numerous additional small lakes and streams are scattered throughout Island Park.
Yellowstone and Grand Teton National Parks are within a short drive, offering hiking and fishing, as well as outstanding scenery.
Getting there
From West Yellowstone, Montana, travel 22 miles south on Highway 20 to Mack's Inn. Turn east on Big Springs Loop Road and travel 4.5 miles to the campground.
View on Recreation.gov ↗ Get directions ↗
Photo gallery
FAQ
How do I get a reservation at Big Springs Grp. Area - Island Park?
Campsite Sniper's current snapshot shows none of the 13 tracked site-nights open for online reservation at Big Springs Grp. Area - Island Park. That can mean dates are reserved, closed, not yet released, or offered first-come, first-served rather than online. 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.
Does Campsite Sniper book this campground for me?
No. Campsite Sniper sends alerts and direct Recreation.gov links. It never books, pays for, holds, hoards, or resells reservations.
How current is this availability data?
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.
Which sites at Big Springs Grp. Area - Island Park fit a 35-foot RV?
1 of the 1 site that support RV analysis has a recorded maximum of 35 ft or more; the longest recorded is 45 ft.
Does Big Springs Grp. Area - Island Park have online availability right now?
As of the Sep 18, 2026 snapshot, none of the 13 tracked site-nights are open for online reservation. That can mean dates are reserved, closed, not yet released, or offered first-come, first-served rather than online. A free Campsite Sniper alert tells you if any date opens online.
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