Thomas Point Shoal Lighthouse was first lighted on November 28,1875, a 3-1/2 order Fresnel lens showed a flashing red light every 20 seconds. The lighthouse is still an active Beacon of Navigation. The lighthouse is one of twelve Maritime National Historic Landmarks after earning that designation in 1999.
Active; focal plane 43' (13m); white flash every 5 s (2 red sectors cover nearby shoals). 48' (15m) cottage screwpile lighthouse with hexagonal 1-1/2 story wood keeper's cottage with lantern and gallery centered on the roof; solar-powered 250 mm lens. Lighthouse painted white with a red roof; lantern is black. Fog horn (2 s blast every 15 s). The original 4th order Fresnel lens is displayed at the Coast Guard district headquarters in Baltimore. The lighthouse carries a NOAA C-MAN automatic weather station.
GPS: Latitude: 38.89903, Longitude: -76.43608
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