St. Mary Provincial Recreation Area now has campsites that are Reservable and First Come, First Serve Campsites in Upper St. Mary Campground and Wally's Campground.
Lower St. Mary Campground is all by Reservation.
Campsites can be reserved online by visiting Shop.AlbertaParks.ca or by calling 1-877-537-2757.
Alberta Parks online reservations are available to book within a rolling booking window. Your arrival date must be within the booking window before a reservation can be made. The booking window advances by one day each morning at 9:00 a.m.
