Cinder Cones Small volcanoes are often just conical piles of loose rubble called cinder cones with interspersed lava flows. This cone is Wizard Island in Crater Lake, Oregon. This is an unfamiliar view of a famous landmark.
Most people are familiar with just the rightmost side of it.
This is Diamond Head, near Honolulu. It got its name because 19th century sailors mistook olivine crystals weathering out of the volcanic rocks for diamonds. Seen from the air, Diamond Head is a broad, low ring. Shield Volcanoes Shield volcanoes, like Haleakala, on the island of Maui, Hawaii, erupt basalt, a very fluid lava. They build immense, broad domes with gentle slopes.