Over time, all steep slopes are prone to soil erosion and landslides ... The failed slopes also lost valuable habitat in forested ravines and increased the siltation of many streams and tributaries.

Buriticupu, a town of 55,000 people in the Brazilian Amazon, faces destruction as giant ravines expand rapidly due to erosion-prone soil, poor urban planning, deforestation and heavy rains.

The ravine is greater than 2 meters deep. This photo may only be used to illustrate the news release, "Post-Wildfire Erosion Can Be Major Sculptor of Forested Western Mountains," or a story about ...

Entire communities across Africa and Latin America are disappearing because of an extreme form of soil erosion ... people in two cities on the edge of a ravine. In 1995, the Hubble Space Telescope ...

The Ravine Strategy project, one of the largest announced this year, cost $6.2 million, $1.9 million of which comes from the city, was needed because erosion was eroding the creek bank and trail. The ...