Fat Deer Key

Fat Deer Key is an island^[1] in the middle Florida Keys.^[2]

Fat Deer Key

Mangrove Beach in Fat Deer Key
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Geography
Location	Gulf of Mexico
Coordinates	24°44′20″N 81°00′07″W
Archipelago	Florida Keys
Adjacent to	Florida Straits
Administration
United States
State	Florida
County	Monroe

U.S. 1 (or the Overseas Highway) crosses the key near mile markers 53.5-56, between Long Point Key and Key Vaca.

It is entirely within the cities of Marathon, Florida and Key Colony Beach, Florida.

It has the only road leading to the city of Key Colony Beach, known as Sadowski Causeway.