Lois Key is an island in the lower Florida Keys approximately 20 miles (32 km) east of Key West.
Map of Lois Key, Florida 33042, USA
Lois Key is not connected to the rest of the Florida Keys by bridge or by land. It is uninhabited, but until 1999, was the site of a commercially operated breeding colony of rhesus monkeys.
It can be accessed by boat from Summerland Key and was the subject of a controversial article in Slate magazine on Monkeyfishing which turned out to be fabricated.
References
Lois Key Wikipedia(Text) CC BY-SA