Specifically relating to Assateague Island National Seashore in Maryland, this stamp is part of the group of stamps honoring the National Park Service Centennial.

Assateague Island, famed for its wild horses, lies off the Delmarva Peninsula on the Atlantic Coast. This barrier island is a constantly shifting ribbon of sand, altered daily by powerful wind and waves.

Enjoy the beauty of the herds of wild Assateague horses that roam the beaches and woods. Explore sandy beaches, salt marshes, maritime forests, and coastal bays.

Bands of wild horses freely roam amongst plants and native animals that have adapted to a life of sand, salt and wind. Special thickened leaves and odd shapes reveal the plant world's successful struggle here. Ghost crabs buried in the cool beach sand and tree swallows plucking bayberries on their southward migration offer glimpses of the animal world's connection to Assateague.