Unfortunately, the information provided in the question is incorrect. New Lock 6 Road Felsenthal is not located in Louisiana, but rather in Arkansas. It is a boat ramp located on the Ouachita River, which is a major waterway in the south-central United States. The coordinates for New Lock 6 Road Felsenthal are approximately 33.0663° N, 92.1295° W.

According to the Arkansas Game and Fish Commission website, the New Lock 6 Road Felsenthal boat ramp is a concrete ramp that is 20 feet wide and provides access to the Ouachita River. The ramp has a large parking area for vehicles and boat trailers, as well as a restroom and picnic area for visitors.

The Ouachita River is a popular destination for recreational boaters and anglers. The river is suitable for a variety of watercraft, including motorized boats, canoes, and kayaks. However, users should be aware of the river's sometimes swift currents and changing water levels, especially during periods of heavy rain or flooding.

In summary, the New Lock 6 Road Felsenthal boat ramp is a concrete ramp located on the Ouachita River in Arkansas. It is 20 feet wide and provides access for a variety of watercraft, including motorized boats, canoes, and kayaks.