Cotopaxi (0.7S 78.4W) is a stratovolcano with a summit elevation of 19,388 feet (5,911 m). It has erupted 50 times since 1738. The 1877 eruption melted snow and ice on the summit, which produced mudflows that traveled 60 miles (100 km) from the volcano. The most recent eruption of Cotopaxi ended in 1904. Reports of an eruption in 1942 have not been confirmed. The most recent activity was an increase in steam emissions, melting snow, and small earthquakes from 1975-1976.