🔍 Key Concepts

• NOAA chart numbering system and how numbers relate to geographic areas • Difference between coastal/small-scale charts and harbor/large-scale charts • How chart titles and coverage areas are listed in the Chart Catalog or chart margin information

💭 Think About

• Think about which type of chart is best once you are inside a harbor: do you need a broad overview or detailed close‑in information? • Consider how chart numbers usually change as you go from offshore/coastal approaches to harbor and anchorage areas. • Ask yourself: which of these chart numbers is commonly associated with the approach to New London versus the harbor itself?

✅ Before You Answer

• Check which chart is specifically titled or subtitled with “Harbor”, “Harbor and Approaches,” or similar wording. • Verify the scale of each chart: the correct choice should have a larger scale (more detail) suitable for harbor navigation. • Confirm in a chart catalog or table which chart boundary box actually includes the interior of New London Harbor, not just offshore approaches.