Updated 2008. This is one of our most detailed maps. It is a full-color, waterproof and tear resistant map with a GPS Grid and Coordinates. Lake Buchanan is 23,200 acres located on the Colorado River, west of Burnet. EXCELLENT: Catfish GOOD: Largemouth Bass, White/Striped Bass FAIR: Crappie, Sunfish. 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.