Unfortunately, the information provided in the prompt is incorrect. Lake George is actually a body of water located in upstate New York, not in Illinois. Therefore, there is no boat ramp named Lake George in Illinois.

Lake George in New York is a popular tourist destination and offers several boat ramps for visitors to access the lake. However, without further information on which specific boat ramp is being referred to, it is difficult to provide details such as width or types of permitted watercraft. It is recommended to refer to official sources such as the New York State Parks website for accurate and up-to-date information on the boat ramps at Lake George.