US Aids to Navigation Reference Chart by NautiCards

US Aids to Navigation Quick Reference Guide – Waterproof Boating Navigation Reference (8.5" x 11") This waterproof, full-color reference card provides a complete visual overview of the U.S. Aids to Navigation (AtoN) system, including buoyage, daymarks, lights, ranges, and regulatory markers, based on current U.S. Coast Guard standards. Designed for real-world marine use, it’s printed on thick, durable plastic and sized at 8.5" x 11" for easy readability and storage in your cockpit or chart table. Whether you’re a seasoned mariner or simply looking to refresh your navigation knowledge, this guide delivers the essential information needed to identify buoys, lights, and other markers both on the chart and on the water—by day or by night. Key Features: Covers the full U.S. Aids to Navigation system, including lateral and non-lateral buoys, preferred channel aids, safe water marks, and AIS symbols Includes light rhythms, dayboards, regulatory and informational marks, bridge lights, clearan