Based on the latest information available, the boat ramp named Long Lake is located at latitude 47.67390823 and longitude -93.77613831 in Minnesota. It is a concrete boat ramp that is approximately 20 feet wide, making it suitable for most types of watercraft.

This boat ramp services Long Lake, which is a popular fishing and recreational lake in northern Minnesota. Long Lake covers an area of 11.35 square miles and has a maximum depth of 65 feet.

As for the types of watercraft allowed on Long Lake, the latest information suggests that all types of motorized and non-motorized boats are permitted. This includes fishing boats, pontoon boats, kayaks, canoes, and jet skis, among others.

It is important to note that regulations and guidelines may change over time, so it is always best to check with the relevant authorities or local information sources for the most up-to-date information before planning a trip to Long Lake or any other waterway.