Middle Torch Key is an island in the lower Florida Keys.
Map of Middle Torch Key, Florida 33042, USA
It is located between Ramrod Key and Little Torch Key.
The southernmost tip of the key is on U.S. 1 (or the Overseas Highway), at approximately mile marker 28.
Like the other Torch Keys, it was probably named for the native Torchwood tree.
References
Middle Torch Key Wikipedia(Text) CC BY-SA