The Glen Canyon Dam lies on the Colorado River, upstream of the Grand Canyon. Because the dam blocks sediment from upstream, the region’s only sediment sources are two tributary rivers Keep reading
Tag: rivers
Siberia’s Rivers
Each winter the Kolyma River in Siberia freezes to a depth of several meters. But by June the river thaws and discharges its annual 136 cubic kilometers of water into Keep reading
Forming an Oxbow
Without human intervention, meandering rivers become more sinuous over time. This is driven by the flow around a river bend, which tends to push sediment from the outer bank of Keep reading
Namibia From Above
From above, we see an all-new perspective on the flows of air and water that shape our world. Although they look like abstract art, these aerial photographs of Namibia by Keep reading
Watery Veins
Glacial river veins wend and meander through these aerial photographs of Iceland by photographer Stas Bartnikas. Rivers naturally change their course over time, but here seasonal melts and the slow Keep reading
Bringing Beavers Back
It’s easy sometimes to forget just how drastically humans alter landscapes. Before European fur trappers came to North America, its waterways were ruled by beavers, one of nature’s most impressive Keep reading
An Armored Bed
A river’s flow constantly changes its underlying bed. The rocks and particulates beneath a flowing river can typically be divided into two zones: an upper layer called the bed-load zone Keep reading
Washington Ice Disk
Winter weather in northern latitudes sometimes brings with it unusual phenomena like this ice disk spinning in the Middle Fork Snoqualmie River in Washington state. Photographer Kaylyn Messer ventured out Keep reading
Meandering Colorado
Sometimes the meandering of a river is best seen from above. Because of the way water moves to negotiate a bend in the river, any curvature of a river will Keep reading
Meander from Above
This photo of the Amazon River taken by Astronaut Tim Kopra reveals the many meandering changes of the river’s course. Left untouched by human intervention, rivers tend to get more Keep reading