St. Mary Reservoir Provincial Recreation Area is an Alberta Parks recreation area in the South region, 55 kilometres southwest of Lethbridge on Highway 5 and five kilometres northwest on Highway 505. Alberta Parks lists three day-use areas, three campgrounds, and one group-use area.
The official page describes broad horizons, reservoir shores, and strong water recreation.
St. Mary Reservoir is a southern Alberta camping and water destination for boating, sailing, swimming, fishing, and relaxed shoreline weekends. Campers can choose among three campgrounds suited to tents and RVs, with a mix of rustic and powered sites.
Activities include camping, canoeing and kayaking, fishing, interpretive hiking, ice fishing, power boating, sailing, water skiing, wind surfing, and geocaching. Water activities carry aquatic invasive species reminders, so visitors should clean, drain, and dry equipment.
The official page also notes a historic reservoir information loop trail and points winter visitors to ice-safety resources. Nearby attractions listed by Alberta Parks include Remington Carriage Museum, Waterton Lakes National Park, Payne Lake, Police Outpost, and Woolford Provincial Park.
Winter campers should note the operational service change: Upper St. Mary Campground remains open off-season on a first-come, first-served basis, but services are not available.
Plan around camping, group use, boating, sailing, swimming, fishing, ice fishing, water skiing, wind surfing, geocaching, interpretive walking, and shoreline picnics.
Confirm campground seasons, winter-service limits, day-use access, AIS precautions, fishing and ice rules, wind conditions, maps, weather, snake safety, and Alberta Parks updates.
