This is one of our original detailed maps. It is a full-color, waterproof and tear resistant map. Amistad Reservoir is 67,000 acres located on the Rio Grande River, 12 miles northwest of Del Rio. EXCELLENT: Largemouth Bass GOOD: Guadalupe Bass, White Bass, Hybrid/Striped Bass, Channel Catfish, Flue Catfish FAIR: Smallmouth Bass. Our maps have up-to-date navigation markers, road systems, access points and public areas. They locate the area's goods and services with full-color photographs and information on popular Resorts, Marinas, Motels, Bait and Tackle Stores, restaurants and other businesses in the area as shown on the facilities links.