News tagged with rocky mountains

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Ancient Colorado river flowed backwards

(PhysOrg.com) -- Geologists have found evidence that some 55 million years ago a river as big as the modern Colorado flowed through Arizona into Utah in the opposite direction from the present-day river. Writing in the October ...

Oct 04, 2010 5 / 5 (5) 3 | with audio podcast

Curvy mountain belts

Mountain belts on Earth are most commonly formed by collision of one or more tectonic plates. The process of collision, uplift, and subsequent erosion of long mountain belts often produces profound global effects, including ...

Jun 29, 2012 4.6 / 5 (8) 0 | with audio podcast