🔍 Key Concepts

• High water conditions and how they affect buoys on the Mississippi River • Which publication gives the most up‑to‑date, temporary information on aids to navigation (buoys) between Baton Rouge and Cairo • The difference between long‑term reference books (charts, Light List) and frequently updated notices

💭 Think About

• Ask yourself: In high water, buoys can move, be removed, or be temporarily relocated. Which type of publication is designed to report those short‑notice, temporary changes? • Consider: Which source is updated most often and specifically covers the stretch of river from Baton Rouge to Cairo, rather than the whole U.S. coastline? • Think: Would you rely on something published annually, or something issued on a regular, frequent schedule when river conditions are changing quickly?

✅ Before You Answer

• Make sure the publication you’re thinking of is known for giving temporary and local changes to buoys and other aids, not just permanent characteristics. • Confirm that it covers inland rivers / Western Rivers, including the Mississippi between Baton Rouge and Cairo. • Verify that it is updated frequently (e.g., weekly), which is critical during rapidly changing high‑water conditions.