According to the latest information available, the St. Marys Lake Boat Ramp in Maryland is a concrete boat ramp. It is approximately 10 feet wide and offers easy access to St. Marys Lake, which is a freshwater lake with a surface area of 250 acres. The lake is open to various types of watercraft, including motorized boats, canoes, kayaks, and paddleboards. However, there are certain restrictions in place, such as a speed limit of 6 mph for all boats, and a ban on water skiing, tubing, and other high-speed water activities. The St. Marys Lake Boat Ramp is managed by the Maryland Department of Natural Resources and is open year-round, weather permitting.