The oldest crust on Earth, known to be unchanging, is actually being altered in real time. The North American continent is ...

Scientists have uncovered that the continental divide between South America and Africa 135 million years ago unleashed 16 ...

Beginning less than an hour from Denver in the town of Idaho Springs, North America's highest paved road invites sightseers ...

Water always flows from higher terrain to lower elevations, but getting from high to low is not an easy (or always direct) ...

When Maureen Long talks to the public about her work, she likes to ask her audience to close their eyes and think of a ...

As human settlers from Europe settled in and expanded westward across North America — motivated both by fear ... Ecosystem (including Yellowstone National Park), the Northern Continental Divide ...

As human settlers from Europe settled in and expanded westward across North America — motivated both by fear ... Ecosystem (including Yellowstone National Park), the Northern Continental Divide ...