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Life & fun · January 25, 2026

AI

An interactive map of US lighthouses and navigational aids

This is an interactive map of US navigational aids and lighthouses, which indicates their location, color, characteristic and any remarks the Coast Guard has attached. I was sick at home with the flu this weekend, and went on a bit of a Wikipedia deep dive about active American lighthouses. Searching around a bit, it was very hard to find a single source or interactive map of active beacons, and a description of what the "characteristic" meant. The Coast Guard maintains a list of active lights though, that they publish annually…

An interactive map of US lighthouses and navigational aids launched on January 25, 2026 with 102 votes, #333 of 14,584 launches that month and more than 95% of that year's launches.

Visit lighthouses.app ↗Alternativestop 2% of January 2026

In plain words

An interactive map displaying active US lighthouses and navigational aids maintained by the Coast Guard. The tool shows each beacon's location, color, characteristic, and official remarks, with animated visualizations explaining what each light's characteristic means. Created to address the difficulty of finding a comprehensive source for this information, it pulls data from the Coast Guard's annual light list publication. This is intended for reference and exploration rather than actual navigation.

written from the facts on this page · September 2026

From the sources

Interactive map of 59,000+ active US Coast Guard lighthouses and navigational aids. View light characteristics, flash patterns, ranges, and locations from the 2025 Light List.

This map shows active Coast Guard navigational beacons in the United States and parts of Canada, from the 2025 Light List. For informational purposes only. Must not be used as a navigational aid. Official USCG Light List This interactive map displays over 59,000 active US Coast Guard lighthouses, beacons, and navigational aids across the United States and parts of Canada. Data is sourced from the official 2025 USCG Light List. Features include: light characteristics and flash patterns (flashing, occulting, isophase, alternating), visibility ranges, structure descriptions, and official Coast Guard remarks. For official navigational use, please refer to the USCG Light List Annual Publicationfrom lighthouses.app

In the maker’s words, at launch

This is an interactive map of US navigational aids and lighthouses, which indicates their location, color, characteristic and any remarks the Coast Guard has attached. I was sick at home with the flu this weekend, and went on a bit of a Wikipedia deep dive about active American lighthouses. Searching around a bit, it…

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