Based on the latest information available, the boat ramp named West Alaska Lake - Access at Park Nr Cth D in Wisconsin is a concrete boat ramp that is approximately 12 feet wide. This boat ramp provides access to West Alaska Lake, which is a small lake located in Oconto County, Wisconsin.

According to the Wisconsin Department of Natural Resources website, West Alaska Lake is open to all types of boats, including motorized watercraft. However, wake surfing and jet skiing are prohibited on the lake. The lake is primarily used for fishing, with common species including bluegill, largemouth bass, and northern pike.

In terms of amenities, the boat ramp at West Alaska Lake - Access at Park Nr Cth D has a small parking area next to it, which can accommodate up to six vehicles with trailers. There are no fees to use the boat ramp, and no additional facilities such as restrooms or picnic areas are available at this location.

Overall, West Alaska Lake - Access at Park Nr Cth D is a relatively simple boat ramp that provides convenient access to a small but popular fishing lake in Oconto County. Its concrete design and moderate width make it suitable for launching a variety of boats, while the nearby parking area allows for easy loading and unloading of watercraft.