The description made, in 1819, by the British expeditionary Charles Brown, when he identifies himself on the top of La Galera hill, known as El Vigía, Caparrosa or La Pintura, the "House of Signs", in which men are stationed, making the agreed signs, as a kind of telegram, on the occasion of approaching Juan Griego some enemy barcode (...), a system widely used by the Spanish during the sixteenth, seventeenth and eighteenth centuries, because, although the main port of the Island was that of Pampatar, not the only one, and the affected enemies disembarked by one of the frequent inlets in which the fortifications were missing: Juan Griego and La Galera, in the northern region were among the most important. Any invasion that may continue through them had to advance towards La Asunción, forcibly entering the gorge they call the Portachuelo (...). (Heredia: 1996, p 92), and this was always the concern of their rulers.