The Terra Alta was a Portuguese motor yacht, constructed in the shipyards of Santo Amaro, the municipality of São Roque do Pico.

It was a major ship that transported passenger and cargo in the waters of the central group of islands in the archipelago of the Azores, transformed from private hands into the fleet of Transmaçor.

[2] The newspapers of the period, O Telegrafo and Correio da Horta referred to Terra Alta as a modern ship, that transported 100 passengers, "magnificently installed because it was equipped with bunk beds for 16 people and upholstered benches for anyone and had a bar restaurant to provide food and drinks".

[2] Three years later, on 11 April 1949, José Diogo sold the ship to the Empresa Açoriana de Transportes Marítimos for the original purchase value.

[1] In the 1960s, the Terra Alta hit ground along the north coast of Pico, and sunk at the port of Madalena.