Based on the information available, the North Co Road 300 East boat ramp in Sullivan, Indiana is a public boat ramp. However, there is limited information on the width of the ramp.

The boat ramp services Graysville Lake, which is a small, man-made lake located in Sullivan County. The lake covers approximately 66 acres and has a maximum depth of 25 feet. The lake is primarily used for fishing and boating, with various species of fish such as bass, bluegill, and catfish available for anglers.

As for the types of crafts permitted on the water, there are no specific restrictions mentioned. However, it is important to note that the Indiana Department of Natural Resources (DNR) requires all boats to have proper registration and safety equipment. Additionally, there may be restrictions on the use of motorized watercraft on certain bodies of water.

It is recommended to contact the local DNR office or check their website for the latest information and regulations regarding boating on Graysville Lake.