On the morning of Saturday, March 22, 2014, a portion of an unstable hill collapsed, causing the most deadly natural landslide in US history. A wave of mud and debris, 25 feet high and traveling 60 miles an hour, engulfed an entire neighborhood four miles east of Oso, Washington. It swept across the Stillaguamish River and buried State Route 530, cutting off communication and transportation to small communities east of the slide. The slide covered nearly a square mile, destroyed 49 homes, and took 43 lives. President Elson Floyd quickly committed the resources of Washington State University to assist in the recovery, and asked WSU Extension to be on point for the institution. In April 2014, as emergency response efforts turned toward long-term recovery strategies, WSU formed the interdisciplinary SR 530 Mudslide Recovery Team. Co-led by WSU Snohomish County Extension1 and the WSU Division of Governmental Studies and Services (DGSS), the team included members from the WSU Extension ...