The Amistad Reservoir is a large artificial lake located on the border between the United States and Mexico. It was created by the construction of the Amistad Dam on the Rio Grande and serves multiple purposes, including flood control, water supply, and recreation. The reservoir spans approximately 18,000 acres and is a popular destination for fishing, boating, and camping. The reservoir is part of the Amistad National Recreation Area, which offers various outdoor activities and scenic views. It is home to diverse wildlife and provides habitats for numerous species. The area is also significant for its cultural history, with archaeological sites that reflect the region's past.