Lake Elmo State Park is a Montana state park located in Billings, Montana. Lake Elmo is Montana's most popular state park, drawing 153,000 visitors from May through August 2012. The park occupies 123acre and is at an elevation of 3199ft. Non-motorized boating is allowed on the lake. The park has three beach-front areas, a fishing pier, grassed multi-use areas, two group-use shelters for social events and a playground. Another feature of Lake Elmo is its Dog Park. The fenced-in area is located on the west side of the lake.