SEAMANSHIP and NAVIGATION

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• U.S. Coast Guard Navigation Center

• National Buoy Data Center

• River stage gauges including Conowingo

• The American Practical Navigator - Bowditch​

• Coast Pilot 3 - Chesapeake Bay

• Light List for our region 

• Chart 1 - Guide to reading charts 

• National Ocean Service

• NOAA Navigation Charts

• U. S. Naval Observatory time​

• American Sailing Association

• U S Power Squadron

• Basic On-line Boating Course

• Maryland Boating Guide

• Coast Guard Auxiliary​

• Animated Knots by Grog

• Depth sounding​