The red dirt slopes of Araxá made quite an impression on their UCI Mountain Bike World Series debut a year ago, so there's ...

ASHEVILLE - A reader asks how it's possible for streams to continue flowing at the highest peaks of mountains, seemingly defying gravity. Do you have a question for Answer Man or Answer Woman?

River sources are usually small, and in the case of mountain streams, steep and erosional (Montgomery and Buffington 1997). In temperate environments, small streams tend to be shaded by an ...