Paleontologist Anthony Romilio looked at three rock slabs bearing footprints. Most of the footprints come from one slab, which was discovered in 2002.

The 700–1,300 feet-wide space rock deformed rocks more than six miles from the impact site when it hit 600 million years ago.

Big boulders are blocking the road on both sides of Highway 140 in Mariposa County near Briceburg. The scenic sight is now covered with road closed signs and California Highway Patrol officers. "That ...

Rita the Rock Planter is a beloved local legend in Colorado, known for her unique tradition of leaving hand-painted rocks ...

One of the major roads leading to the entrance of Yosemite National Park is blocked due to a large rockslide, and officials don't know when it will be cleared.