While recently reviewing Nigel Calder's book "How to Read a Nautical Chart," I learned with some consternation that even many US coastal areas have chart inaccuracies - and that issues involved in electronic charts can exasperate the problem and lead to potentially disastrous misinterpretation of how close your boat may be to an underwater obstruction. This is, frankly, rather scary, especially for boaters using smart devices as their primary plotter for navigation. The screen representation of your boat on the chart may give a false sense of security resulting in coming closer to rocks or other underwater obstacles than you might realize. This is definitely something we all need to be aware of when entering unfamiliar waters. Learn more here.
