USGS Geohazards website on Landslides .
Site includes descriptions of recent events , often including images.
California Slope stabilization on US 14A, Wyoming Click on images for expanded views. Close up of chicken-wire and rock bolts. The addition of excess water may destabilize slopes by adding weight, destroying cohesion between grains, and reducing friction ravity acts on all objects on the earth's surface. Gravity can be divided into two components for objects resting on sloping surfaces. On gentle slopes the component perpendicular to the slope will be greatest and will act to hold the object in place.