Openings · last 7 days
151
Booking reality
Campsite Sniper detected 151 site openings here in the last 7 days
01 · Detected Opening History · the openings record · file CS-232492
When St. Mary Campground reopens
St. Mary Campground's openings record: every site-date Campsite Sniper detected turning available, logged and time-stamped. Refreshed hourly.
Openings · last 30 days
1,188
Openings · last 90 days
1,824
Weekday pattern
Detected openings by day of week · 90dNo strong weekday pattern is evident in the openings Campsite Sniper has detected: 1,824 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 1,711 of 1,824 detected openings (93.8%). The remaining 6.2% occurred outside those hours. Hours show when Campsite Sniper first detected each opening, in Mountain Time, not when the change was made upstream.
Highest-churn sites
Most openings · 90d| Site | Openings | Share of all openings |
|---|---|---|
| C125 | 42 | 2.3% |
| C119 | 41 | 2.2% |
| C116 | 40 | 2.2% |
| C124 | 40 | 2.2% |
| C120 | 40 | 2.2% |
Site C125 had the most detected openings in the last 90 days: 42. One free watch covers every site here.
02 · Availability Outlook · Nov 2, 2026 – May 3, 2027 · of 138 monitored sites
Of the 25,254 tracked site-nights (Nov 2, 2026 – May 3, 2027): 3,060 on sites not offered for online reservation (first-come, first-served or administrative) · 5,220 closed · 16,974 unavailable (cause unspecified).
No online availability right now
Of the 25,254 tracked site-nights (Nov 2, 2026 – May 3, 2027): 3,060 on sites not offered for online reservation (first-come, first-served or administrative) · 5,220 closed · 16,974 unavailable (cause unspecified). A free alert tells you if any date opens online.
Load status
Nov 2, 2026 – May 3, 2027Not open online100%
Open site-nights0 / 25,254
Of the 25,254 tracked site-nights (Nov 2, 2026 – May 3, 2027): 3,060 on sites not offered for online reservation (first-come, first-served or administrative) · 5,220 closed · 16,974 unavailable (cause unspecified).
Open dates by month
Nov 2026 – May 2027No month in range currently shows online availability. 0 open site-nights across the tracked window — these site-nights are a mix of reserved, closed, unreleased and non-reservable dates.
Holiday windows
Sites open per night · of 136 sites| Window | Night | Sites open | Status |
|---|---|---|---|
| Thanksgiving | THU Nov 26 | 0 | None open |
| FRI Nov 27 | 0 | None open | |
| SAT Nov 28 | 0 | None open | |
| Christmas | THU Dec 24 | 0 | None open |
| FRI Dec 25 | 0 | None open | |
| New Year | THU Dec 31 | 0 | None open |
| FRI Jan 1 | 0 | None open | |
| Memorial Day | FRI May 28 | 0 | None open |
| SAT May 29 | 0 | None open | |
| SUN May 30 | 0 | None open | |
| MON May 31 | 0 | None open |
Thanksgiving: no online availability on any tracked night. Christmas: no online availability on any tracked night. New Year: no online availability on any tracked night. Memorial Day: no online availability on any tracked night.
About St. Mary Campground
Overview
St. Mary Campground is the largest campground on the east side of Glacier National Park, and is conveniently located approximately a half-mile from the St. Mary Visitor Center. The visitor center offers interpretive programs, shuttle service and Red Bus tours leaving from the center. The campground sits near the entrance of the popular scenic byway, the Going-to-the-Sun Road.
Beginning August 17th through September 11th, St. Mary Campground will transition to a day-of reservation window, reservations for these dates may not be made in advance but must be made on the day of anticipated camping.
Generators are allowed only in Loops B & C. Generators are prohibited in Loop A.
For information on nearby campgrounds, including on US Forest Service land or the Blackfeet Nation, take a look at Glacier National Park's website .
Recreation
St. Mary Campground is located on the east side of the park, which boasts some of the best trails available for day hiking. Trailheads start at a higher elevation than those on the west side, so less ascent is required to reach scenic vistas.
Facilities
Potable water is accessible in the campground, and restroom facilities provide flush toilets and sinks with running water.
A couple of miles down the road and outside the park, visitors will find all the comforts of home, including restaurants, gift shops, camp stores, gas and groceries.
Natural Features
Though shade is sparse, the aspen trees that grace St. Mary Campground flutter in spring and summer breezes and provide colorful splashes of yellow late in the season. Views of Singleshot, East Flattop and Red Eagle Mountains provide a dramatic backdrop to the landscape.
St. Mary Lake which, although too cold and occasionally too rough to swim in, provides refreshing scenery on warm days.
Nearby Attractions
One must-see attraction is the sister park across the U.S.-Canadian border, Waterton Lakes National Park . As the other half of the Waterton-Glacier International Peace Park, Waterton Lakes offers fantastic hiking, scenic boat cruises and several scenic drives all centered around the Townsite of Waterton.
Immediately east of Glacier National Park lies the picturesque Blackfeet Indian Reservation , spanning 1.5 million acres. Visit the Museum of the Plains Indian, in Browning, Montana, for a fascinating introduction to the rich cultural heritage of the largest Indian tribe in Montana.
For information on nearby campgrounds, including on US Forest Service land or the Blackfeet Nation, take a look at Glacier National Park's website .
138 monitored sitesRVs up to 40 ftNo hookups48 shadedPets OKFire pitsMax party 24
Getting there
Located a half-mile west of the St. Mary entrance near St. Mary, Montana. Access is from U.S. Highway 89 approximately 33 miles (51 km) northwest of Browning, Montana or over Logan Pass when open. Vehicle restrictions are in effect.
Glacier National Park P.O. Box 128, West Glacier, MT 59936406-732-7708
CampingDay Use AreaFishingHikingInterpretive Programs
View on Recreation.gov ↗ Get directions ↗
03 · Field Photos · roll CS-232492 · facility + sites
Photo gallery
Roll CS-232492 · St. Mary Campground · West Glacier MT12 frames · facility + sites
FAQ
How do I get a reservation at St. Mary Campground?
Campsite Sniper's current snapshot shows none of the 25,254 tracked site-nights open for online reservation at St. Mary Campground. That can mean dates are reserved, closed, not yet released, or offered first-come, first-served rather than online. Campsite Sniper has also detected 1,824 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 Nov 2, 2026 18:20 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 St. Mary Campground?
Campsite Sniper detected 151 site-date openings at St. Mary Campground in the last 7 days, 1,188 over 30 days and 1,824 over the last 90.
Which sites at St. Mary Campground fit a 35-foot RV?
17 of the 136 sites that support RV analysis have a recorded maximum of 35 ft or more; the longest recorded is 40 ft.
Does St. Mary Campground have online availability right now?
As of the Nov 2, 2026 snapshot, none of the 25,254 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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