Ponta do Chão de Mangrade[1] (also: Ponta de Mangrade, Ponta Oeste) is the westernmost point of the Island of Santo Antão,[2] and also the westernmost point of Cape Verde and all Africa.

It is located 5 km northwest of Monte Trigo and 31 km west of Porto Novo, in a very remote area.

The 1494 Treaty of Tordesillas divided the newly discovered lands outside Europe between Portugal and Spain along a meridian 370 leagues (2,193 km) west of this point.

There is a lighthouse on the headland, consisting of a 3 m high white concrete tower with a red lantern.

[4] Its focal height is 112 m, and its range is 13 nautical miles (24 km; 15 mi).