The ASH® Report: Industry News Modern Tech & Old Maps Some dangerous US maps are 50 years old http://www.washingtonpost.com/business/economy/alaskas-outdated-maps-make-flying-a-peril-but-a-high-tech-fix-is-slowly-gaining-ground/2014/10/14/bc2e601e-4fd4-11e4-8c24-487e92bc997b_story.html