When the moon is full and the sky is clear, a mystical moonbow appears over Cumberland Falls, Kentucky. The only other place in the world to view a moonbow is Victoria Falls in southern Africa between the countries of Zambia and Zimbabwe.
When conditions are right, Cumberland Falls — known as the “Niagara of the South” because of its 125-foot-wide curtain of water — produces a faint rainbow as moonlight refracts through the waterfall mist.
In celebration of this natural phenomenon — and to observe 85 years of Kentucky Parks — the Postal Service partnered with state officials to create Customized Postage of the falls, a commemorative envelope and special Postmark.
The envelope and Postmark were designed by artist Ralph Bergmann. The envelope
features the rushing falls and the Customized Postage is an aerial view of Cumberland Falls. Bergmann is known for his talent in several mediums — print and electronic to way-finding and exhibit design. The award-winning graphic artist has been published in several publications including How Magazine
During the anniversary celebration, Resort Park Manager Lisa Davis welcomed more than 100 visitors, postal officials and park personnel to the event including Kentucky State Parks Commissioner Gerry Van der Meer, Deputy Commissioner Steve Brooks, Resort Parks Director Kerry Lamb, Assistant Director John Paul, Corbin Mayor Willard McBurney and State Representative (82nd District) Charles Siler.