Landslides, debris flows, and floods are frequently the result of heavy rains, particularly when many rain occurs over a long period of time, allowing the ground to get saturated with water.

General

USGS Landslide Hazards - information about U.S. landslide hazards: maps, publications, and images of landslides and associated disasters.

Landslide Types and Processes - types and mass movement associated with gravity and stream floods

Maps

National Landslide Overview Map of the U.S. - interactive map show landslide and flood hazard areas

Map Showing Inventory and Regional Susceptibility for Holocene Debris Flows, and Related Fast-Moving Landslides in the Conterminous U.S. - shows debris flow hazard areas of the U.S.

Reports

Landslide Hazards -

This website provides basic information about landslide hazards and safety issues related to wet weather conditions in landslide-prone areas.

National Landslide Hazards Mitigation Strategy: A Framework for Loss Reduction, (Circular 1244) - outlines the key elements of a comprehensive and effective national strategy for reducing losses from landslides nationwide and provides an assessment of the status, needs, and associated costs

Debris-Flow Hazards in the U.S.