In 1798, Ellicott complained to the government about four American generals receiving pensions from Spain, including General in Chief James Wilkinson, raising the specter of treason, which later involved Vice President (during Jefferson's first term), Aaron Burr. Ellicott showed considerable diplomatic talent during this joint project to bring it to a successful completion, and he presented his final report with maps to the government in 1800. (The "Mapping" episode of Philip Morrison's miniseries "The Ring Of Truth" illustrates Ellicott's surveying methods from Ellicott Hill in Natchez, Mississippi, which is now another National Historic Landmark.)