Sail Safely: Use a Reliable Paper Chart

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NOAA Nautical Chart 13274

Portsmouth Harbor to Boston Harbor; Merrimack River Extension

Scale: 40,000
Paper Size: 42.0" x 63.0"
Actual Chart Size: 58.8" x 40.7"
Edition #: 28
Edition Date: 2011-04-01
NTM Notice/Date: 3515 2015-08-29
LNM Notice/Date: 3315 2015-08-18

NTM = NGA Notice to Mariners
LNM = Local Notice to Mariners

The chart you are viewing is a NOAA chart by OceanGrafix. Printed “on-demand,” it contains all of the latest NOAA updates as of the time of printing. This chart is available for purchase online.