Measuring the Distance

Take a pair of dividers and set one tip on the green gong buoy and the other on the red and white bell buoy. Then bring the dividers to the side of the chart near the course and measure the distance of that leg of the route. One minute of arc of latitude equals one nautical mile.
Database ID: 
Online: NOAA
Geographic Location: 
Penobscot Bay, Maine
NOAA Coast Survey