After conducting research, there doesn't seem to be any information available about a boat ramp named Bower Lake in Minnesota with the given latitude and longitude coordinates. It's possible that the location information provided is inaccurate, or the boat ramp may be too small or obscure to have any publicized information available online.

Without accurate information, it's impossible to determine what kind of boat ramp Bower Lake is, how wide it is, what body of water it services, and what kind of watercraft are permitted on the water. It's important to note that regulations regarding watercraft and boat ramps can vary by state and even by specific location, so it's crucial to always consult the most up-to-date information available before using any boat ramp or taking any watercraft onto a body of water.