Cape Roxo (Portuguese: Cabo Roxo, French: Cap Roxo), is a headland in West Africa, marking the westernmost frontier of Guinea-Bissau with Senegal. On the lower side is the São Domingos district of the Cacheu Region of the Republic of Guinea-Bissau, above it is the Oussouye Department of the Ziguinchor Region of the Republic of Senegal. Cape Roxo marks a significant angle shift in the outline of the African coast, with the coast running north–south above it, and turning southeast below it. It wa…