Grand Mesa, one of Earth’s largest landforms, towers over the scenic city of Grand Junction, Colorado, like an 11,000-foot-high dinner table.
Sitting near the edges of the red-rock Colorado National Monument, the world’s largest flattop mountain was formed nearly 10 million years ago from an ancient lava flow that filled a river canyon. “In cross-section, the mesa resembles a giant layer cake that has been nibbled away from the sides,” says Rex Cole, emeritus professor of geology at Colorado Mesa University.
Click here to read the full article from National Geographic.