Based on the available information, the Lena Use Area Cove boat ramp in Garland County, Arkansas is a concrete boat ramp that provides access to Lake Ouachita. The width of the boat ramp is not specified, but it is likely to be wide enough to accommodate various types of watercraft.

Lake Ouachita is one of the largest lakes in Arkansas, covering an area of approximately 40,000 acres. It is a popular destination for boating, fishing, and water sports. The lake is known for its clear, clean water and scenic surroundings.

Various types of watercraft are permitted on Lake Ouachita, including motorboats, sailboats, canoes, and kayaks. However, there are certain regulations and restrictions in place, such as speed limits and no-wake zones, to ensure the safety of all users and protect the environment.

It is important to note that the information provided may be subject to change, and it is always recommended to check the latest regulations and guidelines before using any boat ramp or waterway.