There seems to be some confusion with the location mentioned in the question. White Potato Lake is actually located in Wisconsin, not Illinois. Therefore, the boat ramp mentioned in the question cannot be found in Illinois.

However, to answer the questions based on the accurate information, White Potato Lake boat ramp is a public boat ramp that provides access to White Potato Lake, which is a 102-acre lake located in Oconto County, Wisconsin. The boat ramp is approximately 18 feet wide and is suitable for small to medium-sized boats. The body of water is primarily used for fishing, boating, and swimming, and only non-motorized watercraft are allowed on the lake. The latest information available can be verified through the Wisconsin Department of Natural Resources website.