Unfortunately, there seems to be a discrepancy in the question as Loon Lake is not located in Missouri but rather in Wisconsin. Therefore, the following information pertains to the boat ramp named Loon Lake in Wisconsin:

Loon Lake Boat Ramp is located in the town of Birchwood, Wisconsin, and is operated by the Wisconsin Department of Natural Resources. This boat ramp provides access to Loon Lake, which is a relatively small lake, covering an area of about 435 acres. The lake is popular for fishing and boating, with several species of fish such as walleye, musky, and bass being commonly caught.

The Loon Lake Boat Ramp is a concrete ramp that provides easy access to the lake. The ramp is approximately 15 feet wide, making it suitable for launching most types of boats. There is also a parking lot adjacent to the ramp that can accommodate cars, trucks, and boat trailers.

As per the regulations set by the Wisconsin Department of Natural Resources, any type of watercraft is permitted on Loon Lake, including motorized and non-motorized boats. However, there are some restrictions on the use of motorized boats, particularly those with larger engines. Boats with engines that exceed 10 horsepower are not allowed on the lake, which is intended to preserve the natural beauty of the area and reduce the risk of environmental damage.

In summary, the Loon Lake Boat Ramp is a concrete ramp that provides easy access to Loon Lake in Wisconsin. It is approximately 15 feet wide and can accommodate most types of boats. The lake is open to all types of watercraft, but there are restrictions on the use of motorized boats with larger engines.