are most well known for alerting sailors to hazards and coastlines during
the night, or through conditions which impeed visibilty, such as rain
and fog. However, lighthouses also help to mark the coast by day.
developed by the Lighthouse Board (est. 1852 by U.S. Congress) designated
individual lighthouses as "daymarks" by the use of painted
patterns. Unique patterns painted on lighthouses enable sailors to recognize
them as markers for particular locations during the day. Although many
lighthouses are painted with similiar patterns, they are far enough
apart to prevent them from being confused with one another.
have simple bands of color, others are painted with spiraling lines
and still others are painted one solid color. The most common colors
used to paint lighthouses are white, black and red.