Astronauts got an oblique look at the high plains and mountains of Bolivia.
Published Feb 19, 2018
An ancient collision between continents left a series of fractures in the bedrock around Virginia’s Massanutten Mountains. The event spawned some unusual zig-zagging stretches on the Shenandoah River.
Published Dec 5, 2014
The largest river on the planet, the Amazon, forms from the confluence of the Solimões (the upper Amazon River) and the Negro at the Brazilian city of Manaus in central Amazonas. At the river confluence, the muddy, tan-colored waters of the Solimões meet the “black” water of the Negro River. The unique mixing zone where the waters meet extends downstream through the rainforest for hundreds of kilometers, and is a famous attraction for tourists from all over the world. The tourism contributes to substantial growth in the city of Manaus. Twenty years ago the large park near the city center (center) lay on the eastern outskirts of Manaus.
Published Feb 12, 2005
Peculiar shaped agricultural fields comprise what may be a unique pattern on Earth for its size and repetitiveness.
Published Mar 25, 2019
British Columbia's longest river delivers sediment and nutrients to the Strait of Georgia.
Published Jan 7, 2015
As they prepare for a satellite that will measure the height and areal extent of rivers in unprecedented detail, hydrologists have released a better map of North American river widths.
Published Jul 9, 2015
Buenos Aires, the largest city in Argentina, sits near the outflow of the second largest river in South America.
Published Jun 1, 2015
Long shadows and deep gullies make for a majestic landscape.
Published Apr 20, 2015
Even in China’s largest, driest, and hottest desert, vegetation sprouts in the spring.
Published May 5, 2020
Heavy sediment loads play a role in making it one of the most sinuous rivers in the Amazon Basin.
Published Nov 13, 2019
The largest river in the world is full of bends and meanders, a result of the water course snaking back and forth across the landscape over time.
Published Jul 2, 2018
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