The Elm Avenue Munising boat ramp is located in Munising, Michigan, and is known to be a concrete boat ramp. According to the available information, the Elm Avenue boat ramp is 16 feet wide, which is sufficient for most small to medium-sized boats. The ramp services the Munising Bay, which is part of the Lake Superior water system.

As per the latest information, the Elm Avenue Munising boat ramp is open to all types of watercraft. It is a popular spot for anglers and recreational boaters, who can launch their boats from the ramp and access the surrounding waters. However, certain rules and regulations may apply to ensure the safety of the users and the preservation of the marine environment.

In conclusion, the Elm Avenue Munising boat ramp is a concrete ramp that services Munising Bay, which is part of Lake Superior. It is 16 feet wide and is open to all types of watercraft.