Add Yahoo as a preferred source to see more of our stories on Google. Researchers claim to have solved the mystery of the Green River, which appears to flow uphill. Photo: Getty Images Rivers ...

This article is published through the Colorado River Collaborative, a solutions journalism initiative supported by the Janet Quinney Lawson Institute for Land, Water ...

Rivers typically avoid massive mountain ranges–and they flow downhill, as gravity pulls water downward. However, the Green River in the U.S. state of Utah seems, in some sections, to do the opposite: ...