Geography of Igneous Rocks in the United States
About 15% of the Earth’s present land surface is made up of igneous rocks.
Geography Facts about Kīlauea
Kīlauea is the youngest and most southeastern volcano on Hawaii island.
Sand Dunes in the United States
Dunes often occur in expansive clusters or dune fields, some exceeding hundreds of square miles in area.
Pacific Ring of Fire
The Ring of Fire refers to the long chain of volcanoes and earthquake zones that encircle much of the Pacific Ocean.