Montana
Cancellation alerts

ST. MARY CAMPGROUND

We watch every site at ST. MARY CAMPGROUND 24/7, then email you the moment a cancellation opens up.

100% of weekends booked at top sites·Peak Jul–Aug·158 sites
Set up an alert for ST. MARY CAMPGROUND

Pick your dates, pick the sites you want, we do the watching.

Park favorites

The 10 most popular campsites at ST. MARY CAMPGROUND

Booked on virtually every weekend during peak season (Jul–Aug). They reserve months ahead and rebook within minutes when cancelled — set up an alert and we'll email you the moment one opens.

Site C150

Top pick
Tied for most booked · 116 of 158 sites
STANDARD · Sleeps 8 · Electric

Site A06

Top pick
Tied for most booked · 116 of 158 sites
STANDARD · Sleeps 8 · Electric

Site C125

Top pick
Tied for most booked · 116 of 158 sites
STANDARD · Sleeps 8 · Electric

Site A37

Top pick
Tied for most booked · 116 of 158 sites
STANDARD · Sleeps 8 · Electric

Site A43

Top pick
Tied for most booked · 116 of 158 sites
STANDARD · Sleeps 8 · Electric

Site B74

Top pick
Tied for most booked · 116 of 158 sites
STANDARD · Sleeps 8 · Electric

Site C115

Top pick
Tied for most booked · 116 of 158 sites
STANDARD · Sleeps 8 · Electric

Site C120

Top pick
Tied for most booked · 116 of 158 sites
STANDARD · Sleeps 8 · Electric

Site A48

Top pick
Tied for most booked · 116 of 158 sites
STANDARD · Sleeps 8 · Electric

Site B59 (TENTS ONLY)

Top pick
Tied for most booked · 116 of 158 sites
TENT ONLY · Sleeps 8 · Electric

These sites rebook within minutes of being cancelled. Set an alert at ST. MARY CAMPGROUND and we’ll email you the moment one opens up.

Set up an alert →

About this park

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.