Openings · last 7 days
145
Booking reality
Campsite Sniper detected 145 site openings here in the last 7 days
01 · Detected Opening History · the openings record · file CS-258796
When Avalanche Campground reopens
Avalanche Campground's openings record: every site-date Campsite Sniper detected turning available, logged and time-stamped. Refreshed hourly.
Openings · last 30 days
156
Openings · last 90 days
157
Weekday pattern
Detected openings by day of week · 90dNo strong weekday pattern is evident in the openings Campsite Sniper has detected: 157 openings spread across the week.
Hour-of-day pattern
First detected by hour · local time · last 90 daysThe largest concentrations of detected openings were first detected during the 06:00 and 08:00 local-time hours. Those hours contained 64 of 157 detected openings (40.8%). Hours show when Campsite Sniper first detected each opening, in Mountain Time, not when the change was made upstream.
Lead-time profile
Days before stay date · percentilesHalf of the openings Campsite Sniper detected appeared at least 4 days before the stay date; the middle 50% land 2–4 days out. Set an alert if you want Campsite Sniper to monitor future openings.
Highest-churn sites
Most openings · 90d| Site | Openings | Share of all openings |
|---|---|---|
| A33 | 7 | 4.5% |
| B73 | 7 | 4.5% |
| A46 | 6 | 3.8% |
| B57 | 6 | 3.8% |
| A42 | 5 | 3.2% |
Site A33 had the most detected openings in the last 90 days: 7. One free watch covers every site here.
02 · Availability Outlook · Sep 18 – Sep 20, 2026 · of 87 monitored sites
Of the 255 tracked site-nights (Sep 18 – Sep 20, 2026): 16 open for online reservation · 236 reserved · 3 on sites not offered for online reservation (first-come, first-served or administrative). Of the facility's 87 monitored sites, 84 can be reserved online and 1 are first-come, first-served (2 closed).
Where the open windows are
93.7% of tracked site-nights are not currently open for online reservation. 16 of 255 remain open; here is where they are.
Load status
Sep 18 – Sep 20, 2026Not open online93.7%
Open site-nights16 / 255
Reserved (of online inventory)236 / 252
Weekday openings0
Weekend openings16
Of the open site-nights on mapped sites, 0 fall on weekdays and 16 on weekends (Fri–Sun).
Open dates by month
Sep 2026 – Sep 2026September holds the most room. 16 of 255 site-nights are still open there.
Holiday windows
Sites open per night · of 85 sites| 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.
Best-availability sites
Most open site-nights · tracked window| Site | Open site-nights |
|---|---|
| A18 | 1 |
| A23 | 1 |
| A33 | 1 |
| A37 | 1 |
| A38 | 1 |
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.
Next windows
As of Sep 18, 2026 snapshotNext open dateSun · Sep 20
The next bookable night is Sep 20. Campsite Sniper can watch later dates for you.
Stays and site detail
16 open site-nights across 16 sites at Avalanche Campground, from the same hourly snapshot as everything above.
RV length. Longest recorded site here is 34 ft. 29 sites take 25 ft. 1 site of 85 has no recorded maximum and is not counted.
All 16 sites with current availability
| Site | Max RV | Hookups | Open site-nights | Longest run | Dates |
|---|---|---|---|---|---|
| A18 | 23 ft | None | 1 | 1 night | Sep 20 |
| A23 | 20 ft | None | 1 | 1 night | Sep 20 |
| A33 | 24 ft | None | 1 | 1 night | Sep 20 |
| A37 | 20 ft | None | 1 | 1 night | Sep 20 |
| A38 | 16 ft | None | 1 | 1 night | Sep 20 |
| A40 | 28 ft | None | 1 | 1 night | Sep 20 |
| A44 | 20 ft | None | 1 | 1 night | Sep 20 |
| A46 | 26 ft | None | 1 | 1 night | Sep 20 |
| A48 | 28 ft | None | 1 | 1 night | Sep 20 |
| A49 | 26 ft | None | 1 | 1 night | Sep 20 |
| B54 | 26 ft | None | 1 | 1 night | Sep 20 |
| B56 | 19 ft | None | 1 | 1 night | Sep 20 |
| B73 | 17 ft | None | 1 | 1 night | Sep 20 |
| B75 | 19 ft | None | 1 | 1 night | Sep 20 |
| B76 | 20 ft | None | 1 | 1 night | Sep 20 |
| B77 | 23 ft | None | 1 | 1 night | Sep 20 |
About Avalanche Campground
Overview
Avalanche campground is located in one of the most popular sections of Glacier National Park west of the Continental Divide. The campground accommodates tent and RV campers. However, only 50 sites will accommodate vehicle lengths up to 26 feet.
All sites require a reservation. Most sites have a 6-month booking window with a good handful having a 4-day booking window.
Recreation
Avalanche is in one of the most popular sections of Glacier National Park west of the Continental Divide. Two popular day hikes offer spectacular scenery and glimpses of birds and wildlife that inhabit the area.
Facilities
The sites are relatively spread apart and provide privacy for both RV and tent campers. Potable water is available seasonally in the campground, and restroom facilities have flush toilets and sinks with running water.
87 monitored sites1 FCFS siteRVs up to 34 ftNo hookupsPets OKFire pitsMax party 8
Getting there
Avalanche Campground has multiple entry points on the east and west side of the park. West Side Entrance West Entrance – From Columbia Falls, take Highway 2 east to the town of West Glacier (approximately 33 miles (53 km) from Kalispell). West Entrance – From Browning, take Highway 2 west to the town of West Glacier. East Side Entrance St. Mary Entrance – From Columbia Falls, take Highway 2 east to the town of Browning (approx. 83 miles/134 km). At the traffic circle, exit onto Hwy 89 north and continue for another 30 miles (48 km). Follow the signage to the St. Mary Visitor Center / Going-to-the-Sun Road. St. Mary Entrance – From Browning, take Highway 89 north to Going-to-the-Sun Road.
Glacier National Park, West Glacier, MT 59936406-888-7800
CampingDay Use AreaHikingWildlife Viewing
View on Recreation.gov ↗ Get directions ↗
03 · Field Photos · roll CS-258796 · facility + sites
Photo gallery
Roll CS-258796 · Avalanche Campground · West Glacier MT12 frames · facility + sites
FAQ
How do I get a reservation at Avalanche Campground?
Reservations for Avalanche Campground are made through Recreation.gov. 93.7% of tracked site-nights are not currently open for online reservation; 16 of 255 remain open. Campsite Sniper has also detected 157 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.
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.
How often do new openings appear at Avalanche Campground?
Campsite Sniper detected 145 site-date openings at Avalanche Campground in the last 7 days, 156 over 30 days and 157 over the last 90.
Which sites at Avalanche Campground fit a 35-foot RV?
No RV-analyzable site here has a recorded maximum of 35 ft or more; the longest recorded is 34 ft. 84 of those 85 sites have a recorded maximum length and 1 does not; it is not counted as fitting.
Which month has the most availability at Avalanche Campground?
September 2026, with 16 open site-nights in the current snapshot of 255.
How far ahead of a stay do openings appear at Avalanche Campground?
Half of the openings Campsite Sniper detected appeared at least 4 days before the stay date; the middle 50% landed 2-4 days out. Campsite Sniper can monitor future changes for dates you select.
When is the next open date at Avalanche Campground?
As of the Sep 18, 2026 snapshot: the next open date is Sun, Sep 20. Detected openings can add earlier dates at any time; a free Campsite Sniper alert catches those the moment they appear.
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We run paced availability checks for Avalanche Campground. One watch covers every matching online-reservable site.
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When a match opens, you get a push with a Recreation.gov link so you can review and book it yourself.
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