Bygone Tidal Indicator Lost in History's Memory

Twenty-first century seafarers may take for granted the wealth of navigational information available to today's professional mariner, but not that many years ago, such electronic wizardry was unthinkable. Much of this highly useful information in the form of real-time digital data, colorful graphs and up-to-the-minute marine conditions is now at our finger tips thanks to trusted maritime resources on the Internet such as NOAA the US. Coast Guard and regional Maritime Exchanges. The real-time data is designed to not only enhance navigational safety but also to improve the operational effectiveness of commercial maritime interests aboard vessels and in ports throughout America.