Totten Key is an island of the upper Florida Keys

Florida Keys

The Florida Keys are a coral archipelago in southeast United States. They begin at the southeastern tip of the Florida peninsula, about south of Miami, and extend in a gentle arc south-southwest and then westward to Key West, the westernmost of the inhabited islands, and on to the uninhabited Dry...

 in Biscayne National Park

Biscayne National Park

Biscayne National Park is a U.S. National Park located in southern Florida, due east of Homestead. The park preserves Biscayne Bay, one of the top scuba diving areas in the United States. Ninety-five percent of the park is water. In addition, the shore of the bay is the location of an extensive...

. It is in Miami-Dade County, Florida

Miami-Dade County, Florida

Miami-Dade County is a county located in the southeastern part of the state of Florida. As of 2010 U.S. Census, the county had a population of 2,496,435, making it the most populous county in Florida and the eighth-most populous county in the United States...

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It is located in southern Biscayne Bay

Biscayne Bay

Biscayne Bay is a lagoon that is approximately 35 miles long and up to 8 miles wide located on the Atlantic coast of South Florida, United States. It is usually divided for purposes of discussion and analysis into three parts: North Bay, Central Bay, and South Bay. Its area is...

, just west of Old Rhodes Key

Old Rhodes Key

Old Rhodes Key is an island north of the upper Florida Keys in Biscayne National Park. It is in Miami-Dade County, Florida.It is located just north of Broad Creek in the lower part of Biscayne Bay.-History:...

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History

It was probably named for General James E. Totten who was Chief of Engineers for the U.S. Army. In 1848, Totten was in charge of a survey of the Florida coast concentrating on Biscayne Bay.

U.S. Coast Survey chart #68, Florida Reefs, Key Biscayne to Carysfort Reef (1858) has Totten's Key.