Erosion of Earth's topography entrains sediment in rivers flowing across mountains, canyons and other naturally steep landscapes within the catchment. This silt, sand and gravel is transported ...

A reader from Germany alerted me to a cool image from the Terra satellite. This is from southern Iran and shows how they are dealing with the lack of fertile ground and water in this desert region.

More than 200 million gallons of water poured out of Lawn Lake on July 15, 1982, when the earthen dam collapsed. Two-ton boulders and enormous trees tumbled down the mountain, ripping open the land ...

Today, Alluvial Fan may be a name visitors to Rocky Mountain National Park simply pass over as they search for the popular hiking trails that await in other areas. This spot though, on the northern ...

Getting your Trinity Audio player ready... As if there weren’t enough access complications at Rocky Mountain National Park due to restrictions related to the coronavirus, a popular hiking area is ...

The history of rivers on Mars is an important constraint on Martian climate evolution. The timing of relatively young, alluvial fan-forming rivers is especially important, as Mars’ Amazonian ...

Researchers used black sediment to represent large grains, or "gravel" in rivers, and white sediment as "sand" to create a model of an alluvial fan. Disclaimer: AAAS and EurekAlert! are not ...