Piedra Island (Stone Island) is an island in Tropico 4: Modern Times. The most striking thing about this island is the presence of three volcanos, leaving no inch of the island safe from lava flows. As if aware of the danger, the forests in the center of the island grow in concentric circles that resemble a bullseye. The island is naturally covered in stones, rocks, and minable ores, but the only sources of oil are two small underwater deposits. There are a series of stone huts and an ancient ruin located just south of the settlement.