For 16 years, the Buffalo National River has denied explorers access to Arkansas’s longest cave and hundreds of others. Some ...

Peru’s boiling river reaches 210°F, killing animals instantly. Scientists found biodiversity drops by 11% for every 1.8°F ...

Where a river begins Features of a river's upper course How waterfalls, gorges and other physical features are formed Wildlife you might find near or in the upper course This resource is suitable ...

Getty Images/Pedro H. Tesch Coming off a victory over Internacional last week, Mexico visit River Plate at the Estadio Monumental in Buenos Aires, Argentina, to put an end to their adventure in ...

At one point in the Brule River, one of the streams follows a conventional route into a waterfall and then flows downstream while the other plunges into a perceived deep hole and has been thought to ...

Scientists using seismic data tracked groundwater levels beneath the L.A. area. They found heavy rains in 2023 boosted ...

One of their coolest tours is the "Red River Gorge Underground Cavern Glow," which takes paddlers through an abandoned limestone mine by the glow of multi-color, underwater LED lights.On this tour ...

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But there’s even more to admire below ground. Recently, archaeologists confirmed a long-held rumor: the existence of labyrinth of underground tunnels extending out from the temple, sometimes ...

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