Missouri Key

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Satellite image of Ohio Key, Missouri Key, Little Duck Key of Lower Florida Keys

Missouri Key is a small island in the lower Florida Keys.[1]

U.S. 1 (or the Overseas Highway) crosses the key at approximately mile marker 39.5, between Ohio Key and Little Duck Key.

The island was named during Henry Flagler's Overseas Railroad construction years by workers from that state.

It is sometimes known locally as Little Grassy Key or Grassy Island.


  1. ^ Morris, B. (2008). Florida Keys & Everglades Travel Adventures. Adventure Guides Series (in Swedish). Hunter Publishing, Incorporated. p. pt216. ISBN 978-1-58843-559-0. Retrieved September 7, 2017.

Coordinates: 24°40′41″N 81°14′17″W / 24.678°N 81.238°W / 24.678; -81.238