The US 277 South boat ramp is located at Amistad Reservoir in Texas, with coordinates of latitude 29.49438858 and longitude -100.90776062. This boat ramp is a concrete ramp that provides access to the reservoir for recreational boating and fishing activities.

According to the latest information available, the US 277 South boat ramp is approximately 30 feet wide, which is wide enough to accommodate most types of boats. The ramp is also equipped with a courtesy dock, which provides additional space for launching and retrieving boats.

Amistad Reservoir is a popular destination for boating enthusiasts, and the US 277 South boat ramp provides access to this large body of water. The reservoir spans over 64,000 acres and is located on the Rio Grande river, which serves as a natural boundary between the United States and Mexico.

A variety of watercraft are permitted on Amistad Reservoir, including motorized boats, jet skis, canoes, kayaks, and paddleboards. However, it is important to note that all watercraft must comply with state and local laws regarding safety equipment, registration, and boating regulations.

In summary, the US 277 South boat ramp at Amistad Reservoir is a concrete ramp that is approximately 30 feet wide and provides access to a large body of water for recreational boating and fishing activities. The reservoir allows a variety of watercraft, including motorized boats, jet skis, canoes, kayaks, and paddleboards, as long as they comply with state and local laws.