Although the old Seven Mile Bridge crosses over the island, at approximately mile marker 45, west of Knight's Key, (city of Marathon in the middle Florida Keys) and just east of Moser Channel, which is the deepest section of the seven-mile span, it and its exit ramp to the island were closed in 2008 and not reopened until 2022.

While the bridge was closed, access was by ferry or private watercraft only,[1] but in 2014 FDOT approved a $77 million plan to restore it.

The island is said to be named for large flocks of white-crowned pigeons (Columba leucocephala Linnaeus) which once roosted there.

This place was featured during the 18th-season finale as the Finish Line of the hit-reality series, The Amazing Race: Unfinished Business.

This article about a property in Monroe County, Florida on the National Register of Historic Places is a stub.