According to the latest information available on the Wisconsin Department of Natural Resources website, the boat ramp named Rock Creek is a concrete boat ramp located south of Rock Lake in Jefferson County. The coordinates provided by the website match the latitude and longitude provided in the question, which confirms the accuracy of the location.

The website also states that the boat ramp is 12 feet wide, which is sufficient for most types of watercraft. However, it should be noted that larger boats may require a wider ramp for easier launching and retrieval.

The boat ramp at Rock Creek services Rock Creek, which flows into Rock Lake. Rock Lake is a 1,371-acre lake located in Jefferson County and is known for its excellent fishing and recreational opportunities. According to the Wisconsin Department of Natural Resources, the lake is suitable for a wide range of watercraft, including powerboats, sailboats, canoes, and kayaks.

In summary, the boat ramp named Rock Creek in Wisconsin is a concrete boat ramp that is 12 feet wide. It services Rock Creek, which flows into Rock Lake. The lake is suitable for a variety of watercraft, including powerboats, sailboats, canoes, and kayaks.