The main lake area of Lake Amistad runs from the US 90 bridge, past the dam to the point where Mexico and the United States land nears each other at Box Canyon. The US side of the main lake is dominated by deep water, large grass flats and a series of canyons, coves and creeks feeding into the lake.
This part of the lake will be stacked up with boats during the summer months as the bass move down the old creek channels to the safety and happy hunting of the deep water grass beds and deep channels.
Special care should be taken when fishing the main lake to monitor the wind. It is a large wide open area with a lot of distance for wind driven waves to develop into large rollers and chop. Many anglers have worked their way back into one of the inviting coves of the main lake to discover that the wind got up while they were slamming bass in the protected waters of the cove, leaving themselves with a dangerous ride home!
If you are going to cross the international border, marked by the buoys on the Rio Grande River channel, each person on the boat will need to have a Mexican Fishing license in addition to the boat permit and fishing license required on the US side.