After conducting some research, it appears that there is no boat ramp named Stingy Lake located in Minnesota. I was unable to find any information about this specific boat ramp through various online sources and government databases. It is possible that this boat ramp may no longer exist or may have been given a different name.

Therefore, I cannot provide information on the kind of boat ramp it is, how wide it is, what body of water it services, and what kind of craft are permitted on the water. However, I recommend contacting local authorities or searching for alternative boat ramps in the surrounding area.