Here are 5 interesting facts about the La Soufrière volcano in St. Vincent and the Grenadines. 1. It’s a stratovolcano La Soufrière is the highest peak on the island of St. Vincent at over 1200 meters high. This active stratovolcano is located on the northern side of St Vincent. A stratovolcano, also known as a composite volcano, is a conical volcano formed …