It's a geological marvel, formed due to human mistake; a stunning formation that has become the defining feature of the park — a mini Grand Canyon.

His experience is a vivid example of the risks facing Buriticupu’s 70,000 residents. As more gullies appear, there are fears that the city in Maranhão state, on the edge of the Amazon ...

The plan sought to build public awareness of gullies through education, by making it part of the school curriculum and educating farmers on how the chemicals they use affect gullies. The IGEMP also ...

The courses of natural gullies are generally uneven, providing relatively strong resistance that impedes debris flows, but artificial gullies, such as concrete check dams, provide smooth surfaces that ...