Comparing pollen records from three lakes in different geological substrates highlights the influence of geology and climate on long-term vegetation development.

Southwest Adventure Tours can help you and your significant other experience the beauty of the Rocky Mountains — without ...

Grand Canyon National Park – Arizona The Grand Canyon is a testament to the earth's artistic powers, with its sprawling ...

A new study highlights how life possibly evolved prior to and during the rise of Earth’s oxygenated atmosphere.

A consultant will deliver a report next week that predicts how the Yellowstone River’s banks are expected to change in Park ...

What's new on the Sky HISTORY channel: ...