The University of Michigan Water Center, together with the Western Lake Erie Basin Partnership, the International Joint Commission, and LimnoTech, hosted a Great Lakes SWAT Modeling Workshop on March 18-19, 2014. The event featured presentations from several modeling groups, as well as break out discussions focused on SWAT challenges and recommended improvements. More than 50 individuals representing academic institutions, government agencies, and NGOs participated in the two-day event. This site includes workshop presentation and workshop proceedings.