Amistad National Recreation Area is northwest of Del Rio via US 90. The 64,860-acre reservoir is an outgrowth of the Amistad Dam water-storage project, a joint venture of the United States and Mexico. The boundaries of the area extend 74 miles up the Rio Grande and portions of the Pecos and Devils rivers. More than 6 miles long, the dam creates 86-mile-long Lake Amistad. Learn More...