Tecopa Cape

At the northern end of the Gulf of California, the Colorado River spreads into a broad delta of channels and wetlands. Its waters mingle with the gulf, where powerful tides sweep across shallow shores and carry sediment through the estuary. The Cucapá people farmed seasonally flooded ground and fished in the delta's channels and lagoons. In 1540 Hernando de Alarcón's expedition reached the river mouth, where strong tidal currents made navigation difficult.