After conducting research, I was unable to find a boat ramp named "Cass County" at the given latitude and longitude coordinates in Minnesota. It is possible that the location may have changed or the information provided is incorrect.

In general, boat ramps can vary in size and width depending on their location and the body of water they service. They may be designed for small watercraft, such as canoes and kayaks, or larger vessels like fishing boats and pontoons. Some boat ramps may also have specific restrictions on the types of craft that are permitted, such as motorized versus non-motorized watercraft.

Without further information about the specific location of the "Cass County" boat ramp, it is difficult to accurately describe its size, width, and permitted use. It is important to verify any information about boat ramps and other recreational facilities to ensure the safety of all users.