Based on the latest information available, the Art Moss boat ramp is located in Douglas County, Oregon, at the coordinates provided (latitude: 43.77665329, longitude: -123.90182495). This boat ramp provides access to the Umpqua River, a major waterway that flows into the Pacific Ocean.

The Art Moss boat ramp is a concrete ramp that is suitable for most types of boats, including larger vessels. It is approximately 25 feet wide, which allows for easy launching and retrieval of boats.

The Umpqua River is a popular destination for a variety of watercraft, including fishing boats, kayaks, canoes, and recreational powerboats. Anglers can expect to find species such as salmon, steelhead, and trout in the river, while boaters can enjoy a scenic and relatively calm waterway.

Overall, the Art Moss boat ramp is a well-maintained facility that offers easy access to the Umpqua River. It is a popular destination for anglers and boaters alike, and is suitable for a wide range of watercraft.