Location of the Usa's Bullion Depository

This page is the CodyCross answer for the clue below from Futuristic City , Group 990, Puzzle 1 (Holographic Communication).

Question is: Location of the Usa's Bullion Depository

and the answer is: FORTKNOX

Word Meaning:

FORT — A fortified defensive structure stationed with troops.

Definitions from Wiktionary.