In the northern portion of the Lesser Antilles, due east of Puerto Rico and west of Anguilla, lie the British Virgin Islands. Spread across 150 square km (58 square miles) of blue Caribbean sea, the archipelago comprises more than 50 volcanic and coral islands, including the major islands of Tortola, Anegada, Virgin Gorda and Jost Van Dyke. Some of the smaller islands, such as Mosquito, Necker, Little Thatch and Norman island are privately owned. Saint Thomas, Saint Croix and Saint John are a geographically connected albeit US territory.