Chatham Naval Air Station, was an operational United States Navy airfield from 1917 to 1922. It was first established as a blimp base during World War I. It was located in Chatham, Massachusetts. The base was one of the first operational naval air stations in the country. It helped to patrol the northeast United States coast and even participated in a skirmish off of Orleans. In 1922, the station was closed and the history of the base has largely been forgotten except for a lone marker near where the site used to be.