"Did You See It?" is a new crowd sourcing initiative launched by the U.S. Geological Survey's Landslide Hazards Program to collect data about the occurrence of landslides within the United States. Landslides are a serious geologic hazard common to almost every State in the United States. The information will not only help scientists better understand the causes of landslides, possibly leading to improved disaster mitigation strategies, but also serve as public resource to educate citizens about potential risks in their communities.