At first glance the rocks that make up Greenland's Isua supracrustal belt look just like any modern basalt you'd find on the sea floor. But this outcrop, which was first described in the 1960s ...

Basalt underlies much of New Jersey ... parking lots and other human infrastructure. This particular outcrop, about 400 feet long, was exposed when people cut into a hillside to create a narrow ...

The Oregon Badlands is the strangest wilderness in Oregon, with no mountains, lakes or streams. This desert landscape east of ...