Mogador island (French: Ile Mogador) is the main island of the Iles Purpuraires in front of Essaouira. It is about 3 kilometers long and 1.5 kilometers wide, and lies about 1.5 kilometers from the opposite beach of Essaouira.
Around the end of the 1st century BC or early 1st century AD, Juba II established a Tyrian purple factory, processing the murex and purpura shells found in the intertidal rocks at Essaouira and the Iles Purpuraires. This dye colored the purple stripe in Imperial Roman Senatorial togas.
A Roman house with foundations, artifacts and coins were also found on the island.
It has now been designated as a natural reserve, and it cannot be visited without an official authorization.